13906879 has 16 divisors (see below), whose sum is σ = 17274880. Its totient is φ = 10925280.

The previous prime is 13906861. The next prime is 13906883. The reversal of 13906879 is 97860931.

It is a cyclic number.

It is not a de Polignac number, because 13906879 - 2¹¹ = 13904831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13906819) 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, 2437 + ... + 5809.

It is an arithmetic number, because the mean of its divisors is an integer number (1079680).

Almost surely, 2^13906879 is an apocalyptic number.

13906879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13906879 is a deficient number, since it is larger than the sum of its proper divisors (3368001).

13906879 is a wasteful number, since it uses less digits than its factorization.

13906879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3430.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 13906879 is about 3729.1928081020. The cubic root of 13906879 is about 240.4786685264.

The spelling of 13906879 in words is "thirteen million, nine hundred six thousand, eight hundred seventy-nine".