82999573 has 2 divisors, whose sum is σ = 82999574. Its totient is φ = 82999572.

The previous prime is 82999549. The next prime is 82999583. The reversal of 82999573 is 37599928.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75030244 + 7969329 = 8662^2 + 2823^2 .

It is a cyclic number.

It is not a de Polignac number, because 82999573 - 2¹⁷ = 82868501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82999573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82999583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41499786 + 41499787.

It is an arithmetic number, because the mean of its divisors is an integer number (41499787).

Almost surely, 2^82999573 is an apocalyptic number.

It is an amenable number.

82999573 is a deficient number, since it is larger than the sum of its proper divisors (1).

82999573 is an equidigital number, since it uses as much as digits as its factorization.

82999573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 52.

The square root of 82999573 is about 9110.4101444447. The cubic root of 82999573 is about 436.2063191104.

The spelling of 82999573 in words is "eighty-two million, nine hundred ninety-nine thousand, five hundred seventy-three".