12928459 has 2 divisors, whose sum is σ = 12928460. Its totient is φ = 12928458.

The previous prime is 12928439. The next prime is 12928477. The reversal of 12928459 is 95482921.

12928459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12928459 - 2⁵ = 12928427 is a prime.

It is a super-2 number, since 2×12928459² = 334290104229362, which contains 22 as substring.

It is equal to p₈₄₄₈₉₇ and since 12928459 and 844897 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12928439) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6464229 + 6464230.

It is an arithmetic number, because the mean of its divisors is an integer number (6464230).

Almost surely, 2^12928459 is an apocalyptic number.

12928459 is a deficient number, since it is larger than the sum of its proper divisors (1).

12928459 is an equidigital number, since it uses as much as digits as its factorization.

12928459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 12928459 is about 3595.6166369623. The cubic root of 12928459 is about 234.7013499102.

The spelling of 12928459 in words is "twelve million, nine hundred twenty-eight thousand, four hundred fifty-nine".