82972863 has 8 divisors (see below), whose sum is σ = 122922800. Its totient is φ = 55315224.

The previous prime is 82972847. The next prime is 82972873. The reversal of 82972863 is 36827928.

It is not a de Polignac number, because 82972863 - 2⁴ = 82972847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82972873) 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, 1536508 + ... + 1536561.

It is an arithmetic number, because the mean of its divisors is an integer number (15365350).

Almost surely, 2^82972863 is an apocalyptic number.

82972863 is a deficient number, since it is larger than the sum of its proper divisors (39949937).

82972863 is a wasteful number, since it uses less digits than its factorization.

82972863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073078 (or 3073072 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 82972863 is about 9108.9441210274. The cubic root of 82972863 is about 436.1595224005.

The spelling of 82972863 in words is "eighty-two million, nine hundred seventy-two thousand, eight hundred sixty-three".