77683806 has 32 divisors (see below), whose sum is σ = 172922400. Its totient is φ = 25850880.

The previous prime is 77683789. The next prime is 77683817. The reversal of 77683806 is 60838677.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54430 + ... + 55838.

It is an arithmetic number, because the mean of its divisors is an integer number (5403825).

Almost surely, 2^77683806 is an apocalyptic number.

77683806 is an abundant number, since it is smaller than the sum of its proper divisors (95238594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77683806 is a wasteful number, since it uses less digits than its factorization.

77683806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 77683806 is about 8813.8417276464. The cubic root of 77683806 is about 426.6877405227.

The spelling of 77683806 in words is "seventy-seven million, six hundred eighty-three thousand, eight hundred six".