12579797 has 2 divisors, whose sum is σ = 12579798. Its totient is φ = 12579796.

The previous prime is 12579793. The next prime is 12579811. The reversal of 12579797 is 79797521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8059921 + 4519876 = 2839^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 12579797 - 2² = 12579793 is a prime.

It is a super-2 number, since 2×12579797² = 316502585122418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12579793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6289898 + 6289899.

It is an arithmetic number, because the mean of its divisors is an integer number (6289899).

Almost surely, 2^12579797 is an apocalyptic number.

It is an amenable number.

12579797 is a deficient number, since it is larger than the sum of its proper divisors (1).

12579797 is an equidigital number, since it uses as much as digits as its factorization.

12579797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 277830, while the sum is 47.

The square root of 12579797 is about 3546.8009529716. The cubic root of 12579797 is about 232.5722410115.

The spelling of 12579797 in words is "twelve million, five hundred seventy-nine thousand, seven hundred ninety-seven".