82972942 has 16 divisors (see below), whose sum is σ = 135651600. Its totient is φ = 37832832.

The previous prime is 82972933. The next prime is 82972961. The reversal of 82972942 is 24927928.

It is a congruent number.

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, 17067 + ... + 21382.

It is an arithmetic number, because the mean of its divisors is an integer number (8478225).

Almost surely, 2^82972942 is an apocalyptic number.

82972942 is a deficient number, since it is larger than the sum of its proper divisors (52678658).

82972942 is a wasteful number, since it uses less digits than its factorization.

82972942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38547.

The product of its digits is 145152, while the sum is 43.

The square root of 82972942 is about 9108.9484574236. The cubic root of 82972942 is about 436.1596608257.

The spelling of 82972942 in words is "eighty-two million, nine hundred seventy-two thousand, nine hundred forty-two".