68816592 has 60 divisors (see below), whose sum is σ = 207411204. Its totient is φ = 21173760.

The previous prime is 68816569. The next prime is 68816609. The reversal of 68816592 is 29561886.

It can be written as a sum of positive squares in 2 ways, for example, as 3594816 + 65221776 = 1896^2 + 8076^2 .

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, 16509 + ... + 20252.

Almost surely, 2^68816592 is an apocalyptic number.

It is an amenable number.

68816592 is an abundant number, since it is smaller than the sum of its proper divisors (138594612).

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

68816592 is a wasteful number, since it uses less digits than its factorization.

68816592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36788 (or 36779 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 68816592 is about 8295.5766526505. The cubic root of 68816592 is about 409.7928598716.

The spelling of 68816592 in words is "sixty-eight million, eight hundred sixteen thousand, five hundred ninety-two".