13863936 has 44 divisors (see below), whose sum is σ = 36960632. Its totient is φ = 4620288.

The previous prime is 13863929. The next prime is 13863953. The reversal of 13863936 is 63936831.

It is a junction number, because it is equal to n+sod(n) for n = 13863894 and 13863903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816 + ... + 5328.

Almost surely, 2^13863936 is an apocalyptic number.

13863936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13863936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18480316).

13863936 is an abundant number, since it is smaller than the sum of its proper divisors (23096696).

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

13863936 is an equidigital number, since it uses as much as digits as its factorization.

13863936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536 (or 4518 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 13863936 is about 3723.4306761373. The cubic root of 13863936 is about 240.2308889162.

The spelling of 13863936 in words is "thirteen million, eight hundred sixty-three thousand, nine hundred thirty-six".