12577393 has 2 divisors, whose sum is σ = 12577394. Its totient is φ = 12577392.

The previous prime is 12577379. The next prime is 12577403. The reversal of 12577393 is 39377521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9591409 + 2985984 = 3097^2 + 1728^2 .

It is an emirp because it is prime and its reverse (39377521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12577393 - 2⁵ = 12577361 is a prime.

It is not a weakly prime, because it can be changed into another prime (12577303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6288696 + 6288697.

It is an arithmetic number, because the mean of its divisors is an integer number (6288697).

Almost surely, 2^12577393 is an apocalyptic number.

It is an amenable number.

12577393 is a deficient number, since it is larger than the sum of its proper divisors (1).

12577393 is an equidigital number, since it uses as much as digits as its factorization.

12577393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 37.

The square root of 12577393 is about 3546.4620398363. The cubic root of 12577393 is about 232.5574252111.

The spelling of 12577393 in words is "twelve million, five hundred seventy-seven thousand, three hundred ninety-three".