12628459 has 2 divisors, whose sum is σ = 12628460. Its totient is φ = 12628458.

The previous prime is 12628457. The next prime is 12628463. The reversal of 12628459 is 95482621.

12628459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12628459 - 2¹ = 12628457 is a prime.

Together with 12628457, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12628457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6314229 + 6314230.

It is an arithmetic number, because the mean of its divisors is an integer number (6314230).

Almost surely, 2^12628459 is an apocalyptic number.

12628459 is a deficient number, since it is larger than the sum of its proper divisors (1).

12628459 is an equidigital number, since it uses as much as digits as its factorization.

12628459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The square root of 12628459 is about 3553.6543163341. The cubic root of 12628459 is about 232.8717389215.

The spelling of 12628459 in words is "twelve million, six hundred twenty-eight thousand, four hundred fifty-nine".