82919856 has 40 divisors (see below), whose sum is σ = 215861184. Its totient is φ = 27426880.

The previous prime is 82919833. The next prime is 82919869. The reversal of 82919856 is 65891928.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306 + ... + 12881.

Almost surely, 2^82919856 is an apocalyptic number.

It is an amenable number.

82919856 is an abundant number, since it is smaller than the sum of its proper divisors (132941328).

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

82919856 is a wasteful number, since it uses less digits than its factorization.

82919856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13329 (or 13323 counting only the distinct ones).

The product of its digits is 311040, while the sum is 48.

The square root of 82919856 is about 9106.0340434242. The cubic root of 82919856 is about 436.0666228187.

The spelling of 82919856 in words is "eighty-two million, nine hundred nineteen thousand, eight hundred fifty-six".