79582513 has 2 divisors, whose sum is σ = 79582514. Its totient is φ = 79582512.

The previous prime is 79582501. The next prime is 79582519. The reversal of 79582513 is 31528597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73667889 + 5914624 = 8583^2 + 2432^2 .

It is a cyclic number.

It is not a de Polignac number, because 79582513 - 2¹³ = 79574321 is a prime.

It is not a weakly prime, because it can be changed into another prime (79582519) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39791256 + 39791257.

It is an arithmetic number, because the mean of its divisors is an integer number (39791257).

Almost surely, 2^79582513 is an apocalyptic number.

It is an amenable number.

79582513 is a deficient number, since it is larger than the sum of its proper divisors (1).

79582513 is an equidigital number, since it uses as much as digits as its factorization.

79582513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 79582513 is about 8920.9031493454. The cubic root of 79582513 is about 430.1360899695.

The spelling of 79582513 in words is "seventy-nine million, five hundred eighty-two thousand, five hundred thirteen".