77137916 has 12 divisors (see below), whose sum is σ = 137204760. Its totient is φ = 37936560.

The previous prime is 77137903. The next prime is 77137937. The reversal of 77137916 is 61973177.

It is a congruent number.

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, 157826 + ... + 158313.

It is an arithmetic number, because the mean of its divisors is an integer number (11433730).

Almost surely, 2^77137916 is an apocalyptic number.

It is an amenable number.

77137916 is a deficient number, since it is larger than the sum of its proper divisors (60066844).

77137916 is a wasteful number, since it uses less digits than its factorization.

77137916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316204 (or 316202 counting only the distinct ones).

The product of its digits is 55566, while the sum is 41.

The square root of 77137916 is about 8782.8193651014. The cubic root of 77137916 is about 425.6859345455.

The spelling of 77137916 in words is "seventy-seven million, one hundred thirty-seven thousand, nine hundred sixteen".