82815704 has 32 divisors (see below), whose sum is σ = 167216400. Its totient is φ = 38307840.

The previous prime is 82815701. The next prime is 82815713. The reversal of 82815704 is 40751828.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82815701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2864 + ... + 13184.

Almost surely, 2^82815704 is an apocalyptic number.

It is an amenable number.

82815704 is an abundant number, since it is smaller than the sum of its proper divisors (84400696).

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

82815704 is a wasteful number, since it uses less digits than its factorization.

82815704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10403 (or 10399 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 82815704 is about 9100.3134011967. The cubic root of 82815704 is about 435.8839715942.

The spelling of 82815704 in words is "eighty-two million, eight hundred fifteen thousand, seven hundred four".