77310956 has 12 divisors (see below), whose sum is σ = 135419592. Its totient is φ = 38619648.

The previous prime is 77310949. The next prime is 77310971. The reversal of 77310956 is 65901377.

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, 3770 + ... + 12993.

It is an arithmetic number, because the mean of its divisors is an integer number (11284966).

Almost surely, 2^77310956 is an apocalyptic number.

It is an amenable number.

77310956 is a deficient number, since it is larger than the sum of its proper divisors (58108636).

77310956 is a wasteful number, since it uses less digits than its factorization.

77310956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17920 (or 17918 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 77310956 is about 8792.6648975154. The cubic root of 77310956 is about 426.0040041649.

The spelling of 77310956 in words is "seventy-seven million, three hundred ten thousand, nine hundred fifty-six".