82917915 has 8 divisors (see below), whose sum is σ = 132668688. Its totient is φ = 44222880.

The previous prime is 82917907. The next prime is 82917929. The reversal of 82917915 is 51971928.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82917915 - 2³ = 82917907 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 2763916 + ... + 2763945.

It is an arithmetic number, because the mean of its divisors is an integer number (16583586).

Almost surely, 2^82917915 is an apocalyptic number.

82917915 is a deficient number, since it is larger than the sum of its proper divisors (49750773).

82917915 is a wasteful number, since it uses less digits than its factorization.

82917915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5527869.

The product of its digits is 45360, while the sum is 42.

The square root of 82917915 is about 9105.9274651185. The cubic root of 82917915 is about 436.0632202886.

The spelling of 82917915 in words is "eighty-two million, nine hundred seventeen thousand, nine hundred fifteen".