77130892 has 6 divisors (see below), whose sum is σ = 134979068. Its totient is φ = 38565444.

The previous prime is 77130817. The next prime is 77130913. The reversal of 77130892 is 29803177.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9641358 + ... + 9641365.

Almost surely, 2^77130892 is an apocalyptic number.

It is an amenable number.

77130892 is a deficient number, since it is larger than the sum of its proper divisors (57848176).

77130892 is a wasteful number, since it uses less digits than its factorization.

77130892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19282727 (or 19282725 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 77130892 is about 8782.4194844018. The cubic root of 77130892 is about 425.6730134949.

The spelling of 77130892 in words is "seventy-seven million, one hundred thirty thousand, eight hundred ninety-two".