13923756 has 72 divisors (see below), whose sum is σ = 43889664. Its totient is φ = 3615840.

The previous prime is 13923737. The next prime is 13923757. The reversal of 13923756 is 65732931.

It is a super-2 number, since 2×13923756² = 387741962295072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13923756.

It is not an unprimeable number, because it can be changed into a prime (13923757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261 + ... + 5283.

Almost surely, 2^13923756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13923756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21944832).

13923756 is an abundant number, since it is smaller than the sum of its proper divisors (29965908).

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

13923756 is a wasteful number, since it uses less digits than its factorization.

13923756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051 (or 5046 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 13923756 is about 3731.4549441203. The cubic root of 13923756 is about 240.5759086000.

The spelling of 13923756 in words is "thirteen million, nine hundred twenty-three thousand, seven hundred fifty-six".