82888631 has 4 divisors (see below), whose sum is σ = 94729872. Its totient is φ = 71047392.

The previous prime is 82888609. The next prime is 82888639. The reversal of 82888631 is 13688828.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82888631 - 2¹⁸ = 82626487 is a prime.

It is a super-2 number, since 2×82888631² = 13741050298108322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82888639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5920610 + ... + 5920623.

It is an arithmetic number, because the mean of its divisors is an integer number (23682468).

Almost surely, 2^82888631 is an apocalyptic number.

82888631 is a deficient number, since it is larger than the sum of its proper divisors (11841241).

82888631 is a wasteful number, since it uses less digits than its factorization.

82888631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11841240.

The product of its digits is 147456, while the sum is 44.

The square root of 82888631 is about 9104.3193595128. The cubic root of 82888631 is about 436.0118796387.

The spelling of 82888631 in words is "eighty-two million, eight hundred eighty-eight thousand, six hundred thirty-one".