82919882 has 4 divisors (see below), whose sum is σ = 124379826. Its totient is φ = 41459940.

The previous prime is 82919873. The next prime is 82919887. The reversal of 82919882 is 28891928.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61952641 + 20967241 = 7871^2 + 4579^2 .

It is not an unprimeable number, because it can be changed into a prime (82919887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20729969 + ... + 20729972.

Almost surely, 2^82919882 is an apocalyptic number.

82919882 is a deficient number, since it is larger than the sum of its proper divisors (41459944).

82919882 is a wasteful number, since it uses less digits than its factorization.

82919882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41459943.

The product of its digits is 165888, while the sum is 47.

The square root of 82919882 is about 9106.0354710489. The cubic root of 82919882 is about 436.0666683957.

The spelling of 82919882 in words is "eighty-two million, nine hundred nineteen thousand, eight hundred eighty-two".