82870475 has 6 divisors (see below), whose sum is σ = 102759420. Its totient is φ = 66296360.

The previous prime is 82870451. The next prime is 82870519. The reversal of 82870475 is 57407828.

It is not a de Polignac number, because 82870475 - 2²⁰ = 81821899 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1657385 + ... + 1657434.

It is an arithmetic number, because the mean of its divisors is an integer number (17126570).

Almost surely, 2^82870475 is an apocalyptic number.

82870475 is a deficient number, since it is larger than the sum of its proper divisors (19888945).

82870475 is a wasteful number, since it uses less digits than its factorization.

82870475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314829 (or 3314824 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 82870475 is about 9103.3221957701. The cubic root of 82870475 is about 435.9800425031.

The spelling of 82870475 in words is "eighty-two million, eight hundred seventy thousand, four hundred seventy-five".