82163944 has 16 divisors (see below), whose sum is σ = 154167300. Its totient is φ = 41052672.

The previous prime is 82163929. The next prime is 82163951. The reversal of 82163944 is 44936128.

It can be written as a sum of positive squares in 2 ways, for example, as 82119844 + 44100 = 9062^2 + 210^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12394 + ... + 17830.

Almost surely, 2^82163944 is an apocalyptic number.

It is an amenable number.

82163944 is a deficient number, since it is larger than the sum of its proper divisors (72003356).

82163944 is a wasteful number, since it uses less digits than its factorization.

82163944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7332 (or 7328 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 82163944 is about 9064.4329111092. The cubic root of 82163944 is about 434.7374890350.

The spelling of 82163944 in words is "eighty-two million, one hundred sixty-three thousand, nine hundred forty-four".