82163974 has 8 divisors (see below), whose sum is σ = 123366600. Its totient is φ = 41041776.

The previous prime is 82163957. The next prime is 82163987. The reversal of 82163974 is 47936128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17484 + ... + 21679.

It is an arithmetic number, because the mean of its divisors is an integer number (15420825).

Almost surely, 2^82163974 is an apocalyptic number.

82163974 is a deficient number, since it is larger than the sum of its proper divisors (41202626).

82163974 is a wasteful number, since it uses less digits than its factorization.

82163974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40214.

The product of its digits is 72576, while the sum is 40.

The square root of 82163974 is about 9064.4345659285. The cubic root of 82163974 is about 434.7375419459.

The spelling of 82163974 in words is "eighty-two million, one hundred sixty-three thousand, nine hundred seventy-four".