68932656 has 120 divisors (see below), whose sum is σ = 216923616. Its totient is φ = 20275200.

The previous prime is 68932631. The next prime is 68932663. The reversal of 68932656 is 65623986.

It is a happy number.

It is a super-2 number, since 2×68932656² = 9503422126428672, which contains 22 as substring.

It is an unprimeable number.

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, 42256 + ... + 43856.

Almost surely, 2^68932656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68932656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108461808).

68932656 is an abundant number, since it is smaller than the sum of its proper divisors (147990960).

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

68932656 is a wasteful number, since it uses less digits than its factorization.

68932656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651 (or 1642 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 68932656 is about 8302.5692409037. The cubic root of 68932656 is about 410.0231119234.

The spelling of 68932656 in words is "sixty-eight million, nine hundred thirty-two thousand, six hundred fifty-six".