82779696 has 30 divisors (see below), whose sum is σ = 231668580. Its totient is φ = 27593184.

The previous prime is 82779679. The next prime is 82779707. The reversal of 82779696 is 69697728.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 287286 + ... + 287573.

It is an arithmetic number, because the mean of its divisors is an integer number (7722286).

Almost surely, 2^82779696 is an apocalyptic number.

It is an amenable number.

82779696 is an abundant number, since it is smaller than the sum of its proper divisors (148888884).

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

82779696 is a wasteful number, since it uses less digits than its factorization.

82779696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574873 (or 574864 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 82779696 is about 9098.3347926970. The cubic root of 82779696 is about 435.8207887895.

The spelling of 82779696 in words is "eighty-two million, seven hundred seventy-nine thousand, six hundred ninety-six".