82789816 has 16 divisors (see below), whose sum is σ = 158160600. Its totient is φ = 40613664.

The previous prime is 82789807. The next prime is 82789829. The reversal of 82789816 is 61898728.

It is a self number, because there is not a number n which added to its sum of digits gives 82789816.

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, 97206 + ... + 98053.

Almost surely, 2^82789816 is an apocalyptic number.

It is an amenable number.

82789816 is a deficient number, since it is larger than the sum of its proper divisors (75370784).

82789816 is a wasteful number, since it uses less digits than its factorization.

82789816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195318 (or 195314 counting only the distinct ones).

The product of its digits is 387072, while the sum is 49.

The square root of 82789816 is about 9098.8909214255. The cubic root of 82789816 is about 435.8385480826.

The spelling of 82789816 in words is "eighty-two million, seven hundred eighty-nine thousand, eight hundred sixteen".