82523971 has 2 divisors, whose sum is σ = 82523972. Its totient is φ = 82523970.

The previous prime is 82523957. The next prime is 82523983. The reversal of 82523971 is 17932528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82523971 - 2⁹ = 82523459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82523971.

It is not a weakly prime, because it can be changed into another prime (82523921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41261985 + 41261986.

It is an arithmetic number, because the mean of its divisors is an integer number (41261986).

Almost surely, 2^82523971 is an apocalyptic number.

82523971 is a deficient number, since it is larger than the sum of its proper divisors (1).

82523971 is an equidigital number, since it uses as much as digits as its factorization.

82523971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 82523971 is about 9084.2705265750. The cubic root of 82523971 is about 435.3715432260.

The spelling of 82523971 in words is "eighty-two million, five hundred twenty-three thousand, nine hundred seventy-one".