68731592 has 8 divisors (see below), whose sum is σ = 128871750. Its totient is φ = 34365792.

The previous prime is 68731583. The next prime is 68731601. The reversal of 68731592 is 29513786.

It is an interprime number because it is at equal distance from previous prime (68731583) and next prime (68731601).

It can be written as a sum of positive squares in only one way, i.e., 48246916 + 20484676 = 6946^2 + 4526^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4295717 + ... + 4295732.

Almost surely, 2^68731592 is an apocalyptic number.

It is an amenable number.

68731592 is a deficient number, since it is larger than the sum of its proper divisors (60140158).

68731592 is a wasteful number, since it uses less digits than its factorization.

68731592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591455 (or 8591451 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 68731592 is about 8290.4518574080. The cubic root of 68731592 is about 409.6240694525.

The spelling of 68731592 in words is "sixty-eight million, seven hundred thirty-one thousand, five hundred ninety-two".