12890629 has 2 divisors, whose sum is σ = 12890630. Its totient is φ = 12890628.

The previous prime is 12890617. The next prime is 12890653. The reversal of 12890629 is 92609821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6630625 + 6260004 = 2575^2 + 2502^2 .

It is an emirp because it is prime and its reverse (92609821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12890629 - 2⁵ = 12890597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12890609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6445314 + 6445315.

It is an arithmetic number, because the mean of its divisors is an integer number (6445315).

Almost surely, 2^12890629 is an apocalyptic number.

It is an amenable number.

12890629 is a deficient number, since it is larger than the sum of its proper divisors (1).

12890629 is an equidigital number, since it uses as much as digits as its factorization.

12890629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 12890629 is about 3590.3522111347. The cubic root of 12890629 is about 234.4722061733.

The spelling of 12890629 in words is "twelve million, eight hundred ninety thousand, six hundred twenty-nine".