82870472 has 16 divisors (see below), whose sum is σ = 162138240. Its totient is φ = 39633616.

The previous prime is 82870451. The next prime is 82870519. The reversal of 82870472 is 27407828.

82870472 = 279² + 280² + ... + 646².

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, 225008 + ... + 225375.

It is an arithmetic number, because the mean of its divisors is an integer number (10133640).

Almost surely, 2^82870472 is an apocalyptic number.

It is an amenable number.

82870472 is a deficient number, since it is larger than the sum of its proper divisors (79267768).

82870472 is a wasteful number, since it uses less digits than its factorization.

82870472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450412 (or 450408 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 82870472 is about 9103.3220309951. The cubic root of 82870472 is about 435.9800372422.

The spelling of 82870472 in words is "eighty-two million, eight hundred seventy thousand, four hundred seventy-two".