12577217 has 2 divisors, whose sum is σ = 12577218. Its totient is φ = 12577216.

The previous prime is 12577211. The next prime is 12577223. The reversal of 12577217 is 71277521.

It is a balanced prime because it is at equal distance from previous prime (12577211) and next prime (12577223).

It can be written as a sum of positive squares in only one way, i.e., 12397441 + 179776 = 3521^2 + 424^2 .

It is a cyclic number.

It is not a de Polignac number, because 12577217 - 2⁸ = 12576961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12577211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6288608 + 6288609.

It is an arithmetic number, because the mean of its divisors is an integer number (6288609).

Almost surely, 2^12577217 is an apocalyptic number.

It is an amenable number.

12577217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12577217 is an equidigital number, since it uses as much as digits as its factorization.

12577217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6860, while the sum is 32.

The square root of 12577217 is about 3546.4372262878. The cubic root of 12577217 is about 232.5563404527.

The spelling of 12577217 in words is "twelve million, five hundred seventy-seven thousand, two hundred seventeen".