79088257 has 2 divisors, whose sum is σ = 79088258. Its totient is φ = 79088256.

The previous prime is 79088239. The next prime is 79088281. The reversal of 79088257 is 75288097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49014001 + 30074256 = 7001^2 + 5484^2 .

It is a cyclic number.

It is not a de Polignac number, because 79088257 - 2¹¹ = 79086209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79088287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39544128 + 39544129.

It is an arithmetic number, because the mean of its divisors is an integer number (39544129).

Almost surely, 2^79088257 is an apocalyptic number.

It is an amenable number.

79088257 is a deficient number, since it is larger than the sum of its proper divisors (1).

79088257 is an equidigital number, since it uses as much as digits as its factorization.

79088257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 79088257 is about 8893.1578755805. The cubic root of 79088257 is about 429.2437708745.

The spelling of 79088257 in words is "seventy-nine million, eighty-eight thousand, two hundred fifty-seven".