82456715 has 32 divisors (see below), whose sum is σ = 118272960. Its totient is φ = 54476800.

The previous prime is 82456709. The next prime is 82456723. The reversal of 82456715 is 51765428.

It is a de Polignac number, because none of the positive numbers 2^k-82456715 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25595 + ... + 28635.

It is an arithmetic number, because the mean of its divisors is an integer number (3696030).

Almost surely, 2^82456715 is an apocalyptic number.

82456715 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

82456715 is a deficient number, since it is larger than the sum of its proper divisors (35816245).

82456715 is a wasteful number, since it uses less digits than its factorization.

82456715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103.

The product of its digits is 67200, while the sum is 38.

The square root of 82456715 is about 9080.5679888430. The cubic root of 82456715 is about 435.2532369674.

The spelling of 82456715 in words is "eighty-two million, four hundred fifty-six thousand, seven hundred fifteen".