82579369 has 2 divisors, whose sum is σ = 82579370. Its totient is φ = 82579368.

The previous prime is 82579363. The next prime is 82579379. The reversal of 82579369 is 96397528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59105344 + 23474025 = 7688^2 + 4845^2 .

It is a cyclic number.

It is not a de Polignac number, because 82579369 - 2⁷ = 82579241 is a prime.

It is a super-2 number, since 2×82579369² = 13638704368876322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82579363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41289684 + 41289685.

It is an arithmetic number, because the mean of its divisors is an integer number (41289685).

Almost surely, 2^82579369 is an apocalyptic number.

It is an amenable number.

82579369 is a deficient number, since it is larger than the sum of its proper divisors (1).

82579369 is an equidigital number, since it uses as much as digits as its factorization.

82579369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 82579369 is about 9087.3191316251. The cubic root of 82579369 is about 435.4689424727.

The spelling of 82579369 in words is "eighty-two million, five hundred seventy-nine thousand, three hundred sixty-nine".