82971926 has 4 divisors (see below), whose sum is σ = 124457892. Its totient is φ = 41485962.

The previous prime is 82971919. The next prime is 82971937. The reversal of 82971926 is 62917928.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20742980 + ... + 20742983.

It is an arithmetic number, because the mean of its divisors is an integer number (31114473).

Almost surely, 2^82971926 is an apocalyptic number.

82971926 is a deficient number, since it is larger than the sum of its proper divisors (41485966).

82971926 is a wasteful number, since it uses less digits than its factorization.

82971926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41485965.

The product of its digits is 108864, while the sum is 44.

The square root of 82971926 is about 9108.8926879177. The cubic root of 82971926 is about 436.1578805665.

The spelling of 82971926 in words is "eighty-two million, nine hundred seventy-one thousand, nine hundred twenty-six".