13813870 has 16 divisors (see below), whose sum is σ = 28417248. Its totient is φ = 4736160.

The previous prime is 13813841. The next prime is 13813873. The reversal of 13813870 is 7831831.

13813870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13813873) 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, 98601 + ... + 98740.

It is an arithmetic number, because the mean of its divisors is an integer number (1776078).

Almost surely, 2^13813870 is an apocalyptic number.

13813870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13813870 is an abundant number, since it is smaller than the sum of its proper divisors (14603378).

13813870 is a wasteful number, since it uses less digits than its factorization.

13813870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197355.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 13813870 is about 3716.7014946051. The cubic root of 13813870 is about 239.9413629897.

The spelling of 13813870 in words is "thirteen million, eight hundred thirteen thousand, eight hundred seventy".