13388855 has 8 divisors (see below), whose sum is σ = 16190064. Its totient is φ = 10628800.

The previous prime is 13388839. The next prime is 13388887. The reversal of 13388855 is 55888331.

13388855 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13388855 - 2⁴ = 13388839 is a prime.

It is a super-2 number, since 2×13388855² = 358522876422050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9566 + ... + 10875.

It is an arithmetic number, because the mean of its divisors is an integer number (2023758).

Almost surely, 2^13388855 is an apocalyptic number.

13388855 is a deficient number, since it is larger than the sum of its proper divisors (2801209).

13388855 is a wasteful number, since it uses less digits than its factorization.

13388855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20577.

The product of its digits is 115200, while the sum is 41.

The square root of 13388855 is about 3659.0784358907. The cubic root of 13388855 is about 237.4549055658.

It can be divided in two parts, 133 and 88855, that added together give a palindrome (88988).

The spelling of 13388855 in words is "thirteen million, three hundred eighty-eight thousand, eight hundred fifty-five".