12904465 has 16 divisors (see below), whose sum is σ = 17756928. Its totient is φ = 8819136.

The previous prime is 12904459. The next prime is 12904469. The reversal of 12904465 is 56440921.

It is a cyclic number.

It is not a de Polignac number, because 12904465 - 2³ = 12904457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12904469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17239 + ... + 17971.

It is an arithmetic number, because the mean of its divisors is an integer number (1109808).

Almost surely, 2^12904465 is an apocalyptic number.

It is an amenable number.

12904465 is a deficient number, since it is larger than the sum of its proper divisors (4852463).

12904465 is an equidigital number, since it uses as much as digits as its factorization.

12904465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 12904465 is about 3592.2785248363. The cubic root of 12904465 is about 234.5560654752.

The spelling of 12904465 in words is "twelve million, nine hundred four thousand, four hundred sixty-five".