77867968 has 28 divisors (see below), whose sum is σ = 155127960. Its totient is φ = 38780672.

The previous prime is 77867957. The next prime is 77868013. The reversal of 77867968 is 86976877.

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, 14955 + ... + 19477.

Almost surely, 2^77867968 is an apocalyptic number.

It is an amenable number.

77867968 is a deficient number, since it is larger than the sum of its proper divisors (77259992).

77867968 is a wasteful number, since it uses less digits than its factorization.

77867968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4804 (or 4794 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 58.

The square root of 77867968 is about 8824.2828603802. The cubic root of 77867968 is about 427.0246518135.

The spelling of 77867968 in words is "seventy-seven million, eight hundred sixty-seven thousand, nine hundred sixty-eight".