82670015 has 16 divisors (see below), whose sum is σ = 101053440. Its totient is φ = 64915200.

The previous prime is 82669999. The next prime is 82670017. The reversal of 82670015 is 51007628.

It is not a de Polignac number, because 82670015 - 2⁴ = 82669999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82670015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82670017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63491 + ... + 64779.

It is an arithmetic number, because the mean of its divisors is an integer number (6315840).

Almost surely, 2^82670015 is an apocalyptic number.

82670015 is a deficient number, since it is larger than the sum of its proper divisors (18383425).

82670015 is a wasteful number, since it uses less digits than its factorization.

82670015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 82670015 is about 9092.3052632432. The cubic root of 82670015 is about 435.6282198802.

The spelling of 82670015 in words is "eighty-two million, six hundred seventy thousand, fifteen".