68917968 has 60 divisors (see below), whose sum is σ = 220431328. Its totient is φ = 19690560.

The previous prime is 68917943. The next prime is 68917973. The reversal of 68917968 is 86971986.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33178 + ... + 35193.

Almost surely, 2^68917968 is an apocalyptic number.

It is an amenable number.

68917968 is an abundant number, since it is smaller than the sum of its proper divisors (151513360).

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

68917968 is a wasteful number, since it uses less digits than its factorization.

68917968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68392 (or 68383 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 68917968 is about 8301.6846483108. The cubic root of 68917968 is about 409.9939876176.

The spelling of 68917968 in words is "sixty-eight million, nine hundred seventeen thousand, nine hundred sixty-eight".