77833864 has 16 divisors (see below), whose sum is σ = 146175120. Its totient is φ = 38853840.

The previous prime is 77833853. The next prime is 77833919. The reversal of 77833864 is 46833877.

It is a super-2 number, since 2×77833864² = 12116220770340992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2422 + ... + 12709.

It is an arithmetic number, because the mean of its divisors is an integer number (9135945).

Almost surely, 2^77833864 is an apocalyptic number.

It is an amenable number.

77833864 is a deficient number, since it is larger than the sum of its proper divisors (68341256).

77833864 is a wasteful number, since it uses less digits than its factorization.

77833864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15780 (or 15776 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 77833864 is about 8822.3502537589. The cubic root of 77833864 is about 426.9623010775.

The spelling of 77833864 in words is "seventy-seven million, eight hundred thirty-three thousand, eight hundred sixty-four".