77537313 has 12 divisors (see below), whose sum is σ = 127998208. Its totient is φ = 44307000.

The previous prime is 77537303. The next prime is 77537333. The reversal of 77537313 is 31373577.

It is not a de Polignac number, because 77537313 - 2¹⁴ = 77520929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77537303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 615313 + ... + 615438.

Almost surely, 2^77537313 is an apocalyptic number.

It is an amenable number.

77537313 is a deficient number, since it is larger than the sum of its proper divisors (50460895).

77537313 is a wasteful number, since it uses less digits than its factorization.

77537313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230764 (or 1230761 counting only the distinct ones).

The product of its digits is 46305, while the sum is 36.

The square root of 77537313 is about 8805.5274118022. The cubic root of 77537313 is about 426.4193615536.

The spelling of 77537313 in words is "seventy-seven million, five hundred thirty-seven thousand, three hundred thirteen".