82704404 has 48 divisors (see below), whose sum is σ = 156710400. Its totient is φ = 38102400.

The previous prime is 82704383. The next prime is 82704449. The reversal of 82704404 is 40440728.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391859 + ... + 392069.

It is an arithmetic number, because the mean of its divisors is an integer number (3264800).

Almost surely, 2^82704404 is an apocalyptic number.

It is an amenable number.

82704404 is a deficient number, since it is larger than the sum of its proper divisors (74005996).

82704404 is a wasteful number, since it uses less digits than its factorization.

82704404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 82704404 is about 9094.1961711852. The cubic root of 82704404 is about 435.6886155875.

The spelling of 82704404 in words is "eighty-two million, seven hundred four thousand, four hundred four".