82089636 has 24 divisors (see below), whose sum is σ = 195619200. Its totient is φ = 26780832.

The previous prime is 82089593. The next prime is 82089659. The reversal of 82089636 is 63698028.

It is a super-2 number, since 2×82089636² = 13477416677224992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72211 + ... + 73338.

It is an arithmetic number, because the mean of its divisors is an integer number (8150800).

Almost surely, 2^82089636 is an apocalyptic number.

It is an amenable number.

82089636 is an abundant number, since it is smaller than the sum of its proper divisors (113529564).

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

82089636 is a wasteful number, since it uses less digits than its factorization.

82089636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145603 (or 145601 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 82089636 is about 9060.3331064592. Note that the first 3 decimals coincide. The cubic root of 82089636 is about 434.6063925335.

The spelling of 82089636 in words is "eighty-two million, eighty-nine thousand, six hundred thirty-six".