82638508 has 6 divisors (see below), whose sum is σ = 144617396. Its totient is φ = 41319252.

The previous prime is 82638473. The next prime is 82638509. The reversal of 82638508 is 80583628.

It is not an unprimeable number, because it can be changed into a prime (82638509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10329810 + ... + 10329817.

Almost surely, 2^82638508 is an apocalyptic number.

It is an amenable number.

82638508 is a deficient number, since it is larger than the sum of its proper divisors (61978888).

82638508 is a wasteful number, since it uses less digits than its factorization.

82638508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20659631 (or 20659629 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 82638508 is about 9090.5724792226. The cubic root of 82638508 is about 435.5728709835.

The spelling of 82638508 in words is "eighty-two million, six hundred thirty-eight thousand, five hundred eight".