68790912 has 32 divisors (see below), whose sum is σ = 182726880. Its totient is φ = 22930176.

The previous prime is 68790901. The next prime is 68790923. The reversal of 68790912 is 21909786.

It is an interprime number because it is at equal distance from previous prime (68790901) and next prime (68790923).

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 89188 + ... + 89955.

It is an arithmetic number, because the mean of its divisors is an integer number (5710215).

Almost surely, 2^68790912 is an apocalyptic number.

It is an amenable number.

68790912 is an abundant number, since it is smaller than the sum of its proper divisors (113935968).

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

68790912 is a wasteful number, since it uses less digits than its factorization.

68790912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179160 (or 179148 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 68790912 is about 8294.0286953928. The cubic root of 68790912 is about 409.7418799668.

The spelling of 68790912 in words is "sixty-eight million, seven hundred ninety thousand, nine hundred twelve".