13868331 has 8 divisors (see below), whose sum is σ = 18512784. Its totient is φ = 9234720.

The previous prime is 13868329. The next prime is 13868339. The reversal of 13868331 is 13386831.

It is a happy number.

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

It is not a de Polignac number, because 13868331 - 2¹ = 13868329 is a prime.

It is a super-2 number, since 2×13868331² = 384661209451122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13868292 and 13868301.

It is not an unprimeable number, because it can be changed into a prime (13868339) 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, 1005 + ... + 5361.

It is an arithmetic number, because the mean of its divisors is an integer number (2314098).

Almost surely, 2^13868331 is an apocalyptic number.

13868331 is a deficient number, since it is larger than the sum of its proper divisors (4644453).

13868331 is a wasteful number, since it uses less digits than its factorization.

13868331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421.

The product of its digits is 10368, while the sum is 33.

The square root of 13868331 is about 3724.0208108978. The cubic root of 13868331 is about 240.2562713955.

The spelling of 13868331 in words is "thirteen million, eight hundred sixty-eight thousand, three hundred thirty-one".