82538579 has 2 divisors, whose sum is σ = 82538580. Its totient is φ = 82538578.

The previous prime is 82538557. The next prime is 82538597. The reversal of 82538579 is 97583528.

Together with next prime (82538597) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82538579 - 2¹⁶ = 82473043 is a prime.

It is not a weakly prime, because it can be changed into another prime (82538509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41269289 + 41269290.

It is an arithmetic number, because the mean of its divisors is an integer number (41269290).

Almost surely, 2^82538579 is an apocalyptic number.

82538579 is a deficient number, since it is larger than the sum of its proper divisors (1).

82538579 is an equidigital number, since it uses as much as digits as its factorization.

82538579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 47.

The square root of 82538579 is about 9085.0745181314. The cubic root of 82538579 is about 435.3972308421.

The spelling of 82538579 in words is "eighty-two million, five hundred thirty-eight thousand, five hundred seventy-nine".