13831836 has 12 divisors (see below), whose sum is σ = 32274312. Its totient is φ = 4610608.

The previous prime is 13831823. The next prime is 13831837. The reversal of 13831836 is 63813831.

It is a happy number.

13831836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13831797 and 13831806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13831837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576315 + ... + 576338.

It is an arithmetic number, because the mean of its divisors is an integer number (2689526).

Almost surely, 2^13831836 is an apocalyptic number.

It is an amenable number.

13831836 is an abundant number, since it is smaller than the sum of its proper divisors (18442476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13831836 is a wasteful number, since it uses less digits than its factorization.

13831836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152660 (or 1152658 counting only the distinct ones).

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

The square root of 13831836 is about 3719.1176372898. The cubic root of 13831836 is about 240.0453386567.

The spelling of 13831836 in words is "thirteen million, eight hundred thirty-one thousand, eight hundred thirty-six".