82870605 has 24 divisors (see below), whose sum is σ = 145466880. Its totient is φ = 43636320.

The previous prime is 82870559. The next prime is 82870637. The reversal of 82870605 is 50607828.

It is not a de Polignac number, because 82870605 - 2⁸ = 82870349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82870605.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 8101 + ... + 15210.

It is an arithmetic number, because the mean of its divisors is an integer number (6061120).

Almost surely, 2^82870605 is an apocalyptic number.

It is an amenable number.

82870605 is a deficient number, since it is larger than the sum of its proper divisors (62596275).

82870605 is a wasteful number, since it uses less digits than its factorization.

82870605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23401 (or 23398 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 82870605 is about 9103.3293360177. The cubic root of 82870605 is about 435.9802704789.

The spelling of 82870605 in words is "eighty-two million, eight hundred seventy thousand, six hundred five".