13393393 has 8 divisors (see below), whose sum is σ = 14452200. Its totient is φ = 12338688.

The previous prime is 13393379. The next prime is 13393397. The reversal of 13393393 is 39339331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2582449 + 10810944 = 1607^2 + 3288^2 .

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 13393393 - 2⁵ = 13393361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13393397) 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, 11523 + ... + 12631.

It is an arithmetic number, because the mean of its divisors is an integer number (1806525).

Almost surely, 2^13393393 is an apocalyptic number.

13393393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13393393 is a deficient number, since it is larger than the sum of its proper divisors (1058807).

13393393 is a wasteful number, since it uses less digits than its factorization.

13393393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051.

The product of its digits is 19683, while the sum is 34.

The square root of 13393393 is about 3659.6984848482. The cubic root of 13393393 is about 237.4817300812.

The spelling of 13393393 in words is "thirteen million, three hundred ninety-three thousand, three hundred ninety-three".