12628757 has 2 divisors, whose sum is σ = 12628758. Its totient is φ = 12628756.

The previous prime is 12628747. The next prime is 12628783. The reversal of 12628757 is 75782621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6522916 + 6105841 = 2554^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 12628757 - 2⁴ = 12628741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12628757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12628747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6314378 + 6314379.

It is an arithmetic number, because the mean of its divisors is an integer number (6314379).

Almost surely, 2^12628757 is an apocalyptic number.

It is an amenable number.

12628757 is a deficient number, since it is larger than the sum of its proper divisors (1).

12628757 is an equidigital number, since it uses as much as digits as its factorization.

12628757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 38.

The square root of 12628757 is about 3553.6962447570. The cubic root of 12628757 is about 232.8735706370.

The spelling of 12628757 in words is "twelve million, six hundred twenty-eight thousand, seven hundred fifty-seven".