13994621 has 16 divisors (see below), whose sum is σ = 16032960. Its totient is φ = 12130560.

The previous prime is 13994593. The next prime is 13994641. The reversal of 13994621 is 12649931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13994621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13994641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11366 + ... + 12536.

It is an arithmetic number, because the mean of its divisors is an integer number (1002060).

Almost surely, 2^13994621 is an apocalyptic number.

It is an amenable number.

13994621 is a deficient number, since it is larger than the sum of its proper divisors (2038339).

13994621 is a wasteful number, since it uses less digits than its factorization.

13994621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244.

The product of its digits is 11664, while the sum is 35.

The square root of 13994621 is about 3740.9385186073. The cubic root of 13994621 is about 240.9833554272.

The spelling of 13994621 in words is "thirteen million, nine hundred ninety-four thousand, six hundred twenty-one".