68928956 has 12 divisors (see below), whose sum is σ = 120698592. Its totient is φ = 34443648.

The previous prime is 68928949. The next prime is 68928961. The reversal of 68928956 is 65982986.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68928898 and 68928907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4076 + ... + 12428.

It is an arithmetic number, because the mean of its divisors is an integer number (10058216).

Almost surely, 2^68928956 is an apocalyptic number.

It is an amenable number.

68928956 is a deficient number, since it is larger than the sum of its proper divisors (51769636).

68928956 is a wasteful number, since it uses less digits than its factorization.

68928956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10420 (or 10418 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 53.

The square root of 68928956 is about 8302.3464153214. The cubic root of 68928956 is about 410.0157757166.

The spelling of 68928956 in words is "sixty-eight million, nine hundred twenty-eight thousand, nine hundred fifty-six".