13393331 has 16 divisors (see below), whose sum is σ = 16770240. Its totient is φ = 10429440.

The previous prime is 13393313. The next prime is 13393349. The reversal of 13393331 is 13339331.

It is an interprime number because it is at equal distance from previous prime (13393313) and next prime (13393349).

It is not a de Polignac number, because 13393331 - 2⁶ = 13393267 is a prime.

It is a super-2 number, since 2×13393331² = 358762630551122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13393331.

It is not an unprimeable number, because it can be changed into a prime (13393301) 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, 1511 + ... + 5391.

It is an arithmetic number, because the mean of its divisors is an integer number (1048140).

Almost surely, 2^13393331 is an apocalyptic number.

13393331 is a deficient number, since it is larger than the sum of its proper divisors (3376909).

13393331 is a wasteful number, since it uses less digits than its factorization.

13393331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3934.

The product of its digits is 2187, while the sum is 26.

The square root of 13393331 is about 3659.6900141952. The cubic root of 13393331 is about 237.4813636346.

The spelling of 13393331 in words is "thirteen million, three hundred ninety-three thousand, three hundred thirty-one".