82875865 has 16 divisors (see below), whose sum is σ = 103090176. Its totient is φ = 63892800.

The previous prime is 82875841. The next prime is 82875869. The reversal of 82875865 is 56857828.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-82875865 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82875869) 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, 41019 + ... + 42991.

It is an arithmetic number, because the mean of its divisors is an integer number (6443136).

Almost surely, 2^82875865 is an apocalyptic number.

It is an amenable number.

82875865 is a deficient number, since it is larger than the sum of its proper divisors (20214311).

82875865 is a wasteful number, since it uses less digits than its factorization.

82875865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280.

The product of its digits is 1075200, while the sum is 49.

The square root of 82875865 is about 9103.6182367232. The cubic root of 82875865 is about 435.9894945285.

The spelling of 82875865 in words is "eighty-two million, eight hundred seventy-five thousand, eight hundred sixty-five".