13304091 has 4 divisors (see below), whose sum is σ = 17738792. Its totient is φ = 8869392.

The previous prime is 13304077. The next prime is 13304099. The reversal of 13304091 is 19040331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19040331 = 3 ⋅6346777.

It is not a de Polignac number, because 13304091 - 2⁷ = 13303963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13304099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2217346 + ... + 2217351.

It is an arithmetic number, because the mean of its divisors is an integer number (4434698).

Almost surely, 2^13304091 is an apocalyptic number.

13304091 is a deficient number, since it is larger than the sum of its proper divisors (4434701).

13304091 is an equidigital number, since it uses as much as digits as its factorization.

13304091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434700.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13304091 is about 3647.4773474279. The cubic root of 13304091 is about 236.9527403141.

The spelling of 13304091 in words is "thirteen million, three hundred four thousand, ninety-one".