82517870 has 32 divisors (see below), whose sum is σ = 152755200. Its totient is φ = 32082336.

The previous prime is 82517867. The next prime is 82517891. The reversal of 82517870 is 7871528.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52151 + ... + 53709.

It is an arithmetic number, because the mean of its divisors is an integer number (4773600).

Almost surely, 2^82517870 is an apocalyptic number.

82517870 is a deficient number, since it is larger than the sum of its proper divisors (70237330).

82517870 is a wasteful number, since it uses less digits than its factorization.

82517870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 82517870 is about 9083.9347201529. The cubic root of 82517870 is about 435.3608139505.

The spelling of 82517870 in words is "eighty-two million, five hundred seventeen thousand, eight hundred seventy".