77283872 has 24 divisors (see below), whose sum is σ = 152409600. Its totient is φ = 38576704.

The previous prime is 77283863. The next prime is 77283919. The reversal of 77283872 is 27838277.

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, 21329 + ... + 24687.

It is an arithmetic number, because the mean of its divisors is an integer number (6350400).

Almost surely, 2^77283872 is an apocalyptic number.

It is an amenable number.

77283872 is a deficient number, since it is larger than the sum of its proper divisors (75125728).

77283872 is a wasteful number, since it uses less digits than its factorization.

77283872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088 (or 4080 counting only the distinct ones).

The product of its digits is 263424, while the sum is 44.

The square root of 77283872 is about 8791.1246152014. The cubic root of 77283872 is about 425.9542516648.

The spelling of 77283872 in words is "seventy-seven million, two hundred eighty-three thousand, eight hundred seventy-two".