82885686 has 32 divisors (see below), whose sum is σ = 178869600. Its totient is φ = 25453824.

The previous prime is 82885669. The next prime is 82885687. The reversal of 82885686 is 68658828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82885687) 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, 78490 + ... + 79538.

It is an arithmetic number, because the mean of its divisors is an integer number (5589675).

Almost surely, 2^82885686 is an apocalyptic number.

82885686 is an abundant number, since it is smaller than the sum of its proper divisors (95983914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82885686 is a wasteful number, since it uses less digits than its factorization.

82885686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080.

The product of its digits is 1474560, while the sum is 51.

The square root of 82885686 is about 9104.1576216584. The cubic root of 82885686 is about 436.0067158015.

The spelling of 82885686 in words is "eighty-two million, eight hundred eighty-five thousand, six hundred eighty-six".