68710356 has 120 divisors (see below), whose sum is σ = 211167264. Its totient is φ = 19206720.

The previous prime is 68710351. The next prime is 68710387. The reversal of 68710356 is 65301786.

It is a super-2 number, since 2×68710356² = 9442226043293472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 68710356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68710351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45591 + ... + 47073.

Almost surely, 2^68710356 is an apocalyptic number.

68710356 is a gapful number since it is divisible by the number (66) 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 68710356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105583632).

68710356 is an abundant number, since it is smaller than the sum of its proper divisors (142456908).

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

68710356 is a wasteful number, since it uses less digits than its factorization.

68710356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523 (or 1512 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 68710356 is about 8289.1710080080. The cubic root of 68710356 is about 409.5818779239.

The spelling of 68710356 in words is "sixty-eight million, seven hundred ten thousand, three hundred fifty-six".