82612577 has 2 divisors, whose sum is σ = 82612578. Its totient is φ = 82612576.

The previous prime is 82612529. The next prime is 82612633. The reversal of 82612577 is 77521628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56490256 + 26122321 = 7516^2 + 5111^2 .

It is a cyclic number.

It is not a de Polignac number, because 82612577 - 2²⁰ = 81564001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82612577.

It is not a weakly prime, because it can be changed into another prime (82618577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41306288 + 41306289.

It is an arithmetic number, because the mean of its divisors is an integer number (41306289).

Almost surely, 2^82612577 is an apocalyptic number.

It is an amenable number.

82612577 is a deficient number, since it is larger than the sum of its proper divisors (1).

82612577 is an equidigital number, since it uses as much as digits as its factorization.

82612577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 38.

The square root of 82612577 is about 9089.1461095089. The cubic root of 82612577 is about 435.5273069884.

The spelling of 82612577 in words is "eighty-two million, six hundred twelve thousand, five hundred seventy-seven".