82815322 has 16 divisors (see below), whose sum is σ = 128588544. Its totient is φ = 39960000.

The previous prime is 82815311. The next prime is 82815349. The reversal of 82815322 is 22351828.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23197 + ... + 26527.

It is an arithmetic number, because the mean of its divisors is an integer number (8036784).

Almost surely, 2^82815322 is an apocalyptic number.

82815322 is a deficient number, since it is larger than the sum of its proper divisors (45773222).

82815322 is a wasteful number, since it uses less digits than its factorization.

82815322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765.

The product of its digits is 7680, while the sum is 31.

The square root of 82815322 is about 9100.2924128843. The cubic root of 82815322 is about 435.8833013995.

The spelling of 82815322 in words is "eighty-two million, eight hundred fifteen thousand, three hundred twenty-two".