13791384 has 40 divisors (see below), whose sum is σ = 38630460. Its totient is φ = 4596912.

The previous prime is 13791377. The next prime is 13791389. The reversal of 13791384 is 48319731.

It is a happy number.

It is a super-3 number, since 3×13791384³ (a number of 22 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13791389) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9994 + ... + 11289.

Almost surely, 2^13791384 is an apocalyptic number.

It is an amenable number.

13791384 is an abundant number, since it is smaller than the sum of its proper divisors (24839076).

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

13791384 is a wasteful number, since it uses less digits than its factorization.

13791384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21301 (or 21288 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 13791384 is about 3713.6752685177. The cubic root of 13791384 is about 239.8111013611.

The spelling of 13791384 in words is "thirteen million, seven hundred ninety-one thousand, three hundred eighty-four".