82639396 has 24 divisors (see below), whose sum is σ = 165878720. Its totient is φ = 35288352.

The previous prime is 82639393. The next prime is 82639399. The reversal of 82639396 is 69393628.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82639393) and next prime (82639399).

It is not an unprimeable number, because it can be changed into a prime (82639393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2710 + ... + 13138.

Almost surely, 2^82639396 is an apocalyptic number.

It is an amenable number.

82639396 is an abundant number, since it is smaller than the sum of its proper divisors (83239324).

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

82639396 is a wasteful number, since it uses less digits than its factorization.

82639396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10723 (or 10721 counting only the distinct ones).

The product of its digits is 419904, while the sum is 46.

The square root of 82639396 is about 9090.6213208999. The cubic root of 82639396 is about 435.5744311413.

The spelling of 82639396 in words is "eighty-two million, six hundred thirty-nine thousand, three hundred ninety-six".