82939571 has 12 divisors (see below), whose sum is σ = 98179536. Its totient is φ = 69598320.

The previous prime is 82939547. The next prime is 82939589. The reversal of 82939571 is 17593928.

It is not a de Polignac number, because 82939571 - 2²² = 78745267 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82939511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24791 + ... + 27936.

It is an arithmetic number, because the mean of its divisors is an integer number (8181628).

Almost surely, 2^82939571 is an apocalyptic number.

82939571 is a deficient number, since it is larger than the sum of its proper divisors (15239965).

82939571 is a wasteful number, since it uses less digits than its factorization.

82939571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52762 (or 52751 counting only the distinct ones).

The product of its digits is 136080, while the sum is 44.

The square root of 82939571 is about 9107.1165030431. The cubic root of 82939571 is about 436.1011797697.

The spelling of 82939571 in words is "eighty-two million, nine hundred thirty-nine thousand, five hundred seventy-one".