79585697 has 2 divisors, whose sum is σ = 79585698. Its totient is φ = 79585696.

The previous prime is 79585691. The next prime is 79585717. The reversal of 79585697 is 79658597.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79405921 + 179776 = 8911^2 + 424^2 .

It is an emirp because it is prime and its reverse (79658597) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79585697 - 2¹⁴ = 79569313 is a prime.

It is not a weakly prime, because it can be changed into another prime (79585691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39792848 + 39792849.

It is an arithmetic number, because the mean of its divisors is an integer number (39792849).

Almost surely, 2^79585697 is an apocalyptic number.

It is an amenable number.

79585697 is a deficient number, since it is larger than the sum of its proper divisors (1).

79585697 is an equidigital number, since it uses as much as digits as its factorization.

79585697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4762800, while the sum is 56.

The square root of 79585697 is about 8921.0816048280. The cubic root of 79585697 is about 430.1418263010.

Subtracting 79585697 from its reverse (79658597), we obtain a square (72900 = 270²).

The spelling of 79585697 in words is "seventy-nine million, five hundred eighty-five thousand, six hundred ninety-seven".