68908992 has 28 divisors (see below), whose sum is σ = 182322216. Its totient is φ = 22969600.

The previous prime is 68908981. The next prime is 68908999. The reversal of 68908992 is 29980986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68908999) 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 3 ways as a sum of consecutive naturals, for example, 179259 + ... + 179642.

Almost surely, 2^68908992 is an apocalyptic number.

It is an amenable number.

68908992 is an abundant number, since it is smaller than the sum of its proper divisors (113413224).

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

68908992 is a wasteful number, since it uses less digits than its factorization.

68908992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358916 (or 358906 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 68908992 is about 8301.1440175436. The cubic root of 68908992 is about 409.9761873935.

The spelling of 68908992 in words is "sixty-eight million, nine hundred eight thousand, nine hundred ninety-two".