815882 has 16 divisors (see below), whose sum is σ = 1283040. Its totient is φ = 388752.

The previous prime is 815869. The next prime is 815891. The reversal of 815882 is 288518.

It is an unprimeable number.

815882 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4469 + ... + 4647.

It is an arithmetic number, because the mean of its divisors is an integer number (80190).

2⁸¹⁵⁸⁸² is an apocalyptic number.

815882 is a deficient number, since it is larger than the sum of its proper divisors (467158).

815882 is a wasteful number, since it uses less digits than its factorization.

815882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277.

The product of its digits is 5120, while the sum is 32.

The square root of 815882 is about 903.2618667917. The cubic root of 815882 is about 93.4420699808.

The spelling of 815882 in words is "eight hundred fifteen thousand, eight hundred eighty-two".