12898657 has 2 divisors, whose sum is σ = 12898658. Its totient is φ = 12898656.

The previous prime is 12898643. The next prime is 12898673. The reversal of 12898657 is 75689821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12327121 + 571536 = 3511^2 + 756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12898657 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12898057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6449328 + 6449329.

It is an arithmetic number, because the mean of its divisors is an integer number (6449329).

Almost surely, 2^12898657 is an apocalyptic number.

It is an amenable number.

12898657 is a deficient number, since it is larger than the sum of its proper divisors (1).

12898657 is an equidigital number, since it uses as much as digits as its factorization.

12898657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 46.

The square root of 12898657 is about 3591.4700332872. The cubic root of 12898657 is about 234.5208707820.

The spelling of 12898657 in words is "twelve million, eight hundred ninety-eight thousand, six hundred fifty-seven".