13994686 has 4 divisors (see below), whose sum is σ = 20992032. Its totient is φ = 6997342.

The previous prime is 13994641. The next prime is 13994699. The reversal of 13994686 is 68649931.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3498670 + ... + 3498673.

It is an arithmetic number, because the mean of its divisors is an integer number (5248008).

Almost surely, 2^13994686 is an apocalyptic number.

13994686 is a deficient number, since it is larger than the sum of its proper divisors (6997346).

13994686 is an equidigital number, since it uses as much as digits as its factorization.

13994686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6997345.

The product of its digits is 279936, while the sum is 46.

The square root of 13994686 is about 3740.9472062567. The cubic root of 13994686 is about 240.9837285204.

The spelling of 13994686 in words is "thirteen million, nine hundred ninety-four thousand, six hundred eighty-six".