68927580 has 72 divisors (see below), whose sum is σ = 210424032. Its totient is φ = 18262656.

The previous prime is 68927561. The next prime is 68927587. The reversal of 68927580 is 8572986.

68927580 is a `hidden beast` number, since 68 + 9 + 2 + 7 + 580 = 666.

It is a super-2 number, since 2×68927580² = 9502022569312800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68927587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28914 + ... + 31206.

It is an arithmetic number, because the mean of its divisors is an integer number (2922556).

Almost surely, 2^68927580 is an apocalyptic number.

68927580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68927580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105212016).

68927580 is an abundant number, since it is smaller than the sum of its proper divisors (141496452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68927580 is a wasteful number, since it uses less digits than its factorization.

68927580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475 (or 2470 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 68927580 is about 8302.2635467684. The cubic root of 68927580 is about 410.0130473738.

The spelling of 68927580 in words is "sixty-eight million, nine hundred twenty-seven thousand, five hundred eighty".