77770832 has 20 divisors (see below), whose sum is σ = 154186560. Its totient is φ = 37980768.

The previous prime is 77770829. The next prime is 77770877. The reversal of 77770832 is 23807777.

It is a self number, because there is not a number n which added to its sum of digits gives 77770832.

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, 55832 + ... + 57207.

It is an arithmetic number, because the mean of its divisors is an integer number (7709328).

Almost surely, 2^77770832 is an apocalyptic number.

It is an amenable number.

77770832 is a deficient number, since it is larger than the sum of its proper divisors (76415728).

77770832 is a wasteful number, since it uses less digits than its factorization.

77770832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113090 (or 113084 counting only the distinct ones).

The product of its (nonzero) digits is 115248, while the sum is 41.

The square root of 77770832 is about 8818.7772395044. Note that the first 3 decimals coincide. The cubic root of 77770832 is about 426.8470146867.

The spelling of 77770832 in words is "seventy-seven million, seven hundred seventy thousand, eight hundred thirty-two".