13843863 has 12 divisors (see below), whose sum is σ = 21814728. Its totient is φ = 8390160.

The previous prime is 13843853. The next prime is 13843877. The reversal of 13843863 is 36834831.

It is a happy number.

It is not a de Polignac number, because 13843863 - 2¹⁶ = 13778327 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13843813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69820 + ... + 70017.

It is an arithmetic number, because the mean of its divisors is an integer number (1817894).

Almost surely, 2^13843863 is an apocalyptic number.

13843863 is a deficient number, since it is larger than the sum of its proper divisors (7970865).

13843863 is a wasteful number, since it uses less digits than its factorization.

13843863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139854 (or 139851 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 13843863 is about 3720.7342017403. The cubic root of 13843863 is about 240.1148929063.

It can be divided in two parts, 13843 and 863, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 13843863 in words is "thirteen million, eight hundred forty-three thousand, eight hundred sixty-three".