13881694 has 8 divisors (see below), whose sum is σ = 20858040. Its totient is φ = 6929016.

The previous prime is 13881683. The next prime is 13881701. The reversal of 13881694 is 49618831.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4369 + ... + 6844.

It is an arithmetic number, because the mean of its divisors is an integer number (2607255).

Almost surely, 2^13881694 is an apocalyptic number.

13881694 is a deficient number, since it is larger than the sum of its proper divisors (6976346).

13881694 is a wasteful number, since it uses less digits than its factorization.

13881694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11834.

The product of its digits is 41472, while the sum is 40.

The square root of 13881694 is about 3725.8145418150. The cubic root of 13881694 is about 240.3334139135. Note that the first 3 decimals are identical.

The spelling of 13881694 in words is "thirteen million, eight hundred eighty-one thousand, six hundred ninety-four".