68589810 has 48 divisors (see below), whose sum is σ = 187724160. Its totient is φ = 17327520.

The previous prime is 68589797. The next prime is 68589817. The reversal of 68589810 is 1898586.

68589810 is a `hidden beast` number, since 68 + 589 + 8 + 1 + 0 = 666.

It is a super-2 number, since 2×68589810² = 9409124071672200, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (68589817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18346 + ... + 21765.

It is an arithmetic number, because the mean of its divisors is an integer number (3910920).

Almost surely, 2^68589810 is an apocalyptic number.

68589810 is an abundant number, since it is smaller than the sum of its proper divisors (119134350).

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

68589810 is a wasteful number, since it uses less digits than its factorization.

68589810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40143 (or 40140 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 68589810 is about 8281.8965219326. The cubic root of 68589810 is about 409.3422131347.

The spelling of 68589810 in words is "sixty-eight million, five hundred eighty-nine thousand, eight hundred ten".