12988957 has 2 divisors, whose sum is σ = 12988958. Its totient is φ = 12988956.

The previous prime is 12988931. The next prime is 12989017. The reversal of 12988957 is 75988921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11930116 + 1058841 = 3454^2 + 1029^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12988957 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12988957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12988757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6494478 + 6494479.

It is an arithmetic number, because the mean of its divisors is an integer number (6494479).

Almost surely, 2^12988957 is an apocalyptic number.

It is an amenable number.

12988957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12988957 is an equidigital number, since it uses as much as digits as its factorization.

12988957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 49.

The square root of 12988957 is about 3604.0195615451. The cubic root of 12988957 is about 235.0668709650.

The spelling of 12988957 in words is "twelve million, nine hundred eighty-eight thousand, nine hundred fifty-seven".