13888894 has 8 divisors (see below), whose sum is σ = 20939688. Its totient is φ = 6909000.

The previous prime is 13888879. The next prime is 13888933. The reversal of 13888894 is 49888831.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17232 + ... + 18019.

It is an arithmetic number, because the mean of its divisors is an integer number (2617461).

Almost surely, 2^13888894 is an apocalyptic number.

13888894 is a deficient number, since it is larger than the sum of its proper divisors (7050794).

13888894 is a wasteful number, since it uses less digits than its factorization.

13888894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35450.

The product of its digits is 442368, while the sum is 49.

The square root of 13888894 is about 3726.7806482271. The cubic root of 13888894 is about 240.3749578706.

The spelling of 13888894 in words is "thirteen million, eight hundred eighty-eight thousand, eight hundred ninety-four".