13904465 has 8 divisors (see below), whose sum is σ = 16857960. Its totient is φ = 11008512.

The previous prime is 13904459. The next prime is 13904467. The reversal of 13904465 is 56440931.

13904465 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2768896 + 11135569 = 1664^2 + 3337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13904465 - 2²⁰ = 12855889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13904467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13850 + ... + 14819.

It is an arithmetic number, because the mean of its divisors is an integer number (2107245).

Almost surely, 2^13904465 is an apocalyptic number.

It is an amenable number.

13904465 is a deficient number, since it is larger than the sum of its proper divisors (2953495).

13904465 is an equidigital number, since it uses as much as digits as its factorization.

13904465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28771.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 13904465 is about 3728.8691315196. The cubic root of 13904465 is about 240.4647533722.

The spelling of 13904465 in words is "thirteen million, nine hundred four thousand, four hundred sixty-five".