13800879 has 6 divisors (see below), whose sum is σ = 19934616. Its totient is φ = 9200580.

The previous prime is 13800863. The next prime is 13800883. The reversal of 13800879 is 97800831.

It is not a de Polignac number, because 13800879 - 2⁴ = 13800863 is a prime.

It is a super-2 number, since 2×13800879² = 380928522345282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13800179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 766707 + ... + 766724.

It is an arithmetic number, because the mean of its divisors is an integer number (3322436).

Almost surely, 2^13800879 is an apocalyptic number.

13800879 is a deficient number, since it is larger than the sum of its proper divisors (6133737).

13800879 is a wasteful number, since it uses less digits than its factorization.

13800879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533437 (or 1533434 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 13800879 is about 3714.9534317404. The cubic root of 13800879 is about 239.8661232515.

The spelling of 13800879 in words is "thirteen million, eight hundred thousand, eight hundred seventy-nine".