76668392 has 8 divisors (see below), whose sum is σ = 143753250. Its totient is φ = 38334192.

The previous prime is 76668367. The next prime is 76668413. The reversal of 76668392 is 29386667.

It can be written as a sum of positive squares in only one way, i.e., 41550916 + 35117476 = 6446^2 + 5926^2 .

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, 4791767 + ... + 4791782.

Almost surely, 2^76668392 is an apocalyptic number.

It is an amenable number.

76668392 is a deficient number, since it is larger than the sum of its proper divisors (67084858).

76668392 is a wasteful number, since it uses less digits than its factorization.

76668392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9583555 (or 9583551 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The square root of 76668392 is about 8756.0488806310. The cubic root of 76668392 is about 424.8204861243.

The spelling of 76668392 in words is "seventy-six million, six hundred sixty-eight thousand, three hundred ninety-two".