13949686 has 8 divisors (see below), whose sum is σ = 22025880. Its totient is φ = 6607728.

The previous prime is 13949671. The next prime is 13949687. The reversal of 13949686 is 68694931.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13949687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183511 + ... + 183586.

It is an arithmetic number, because the mean of its divisors is an integer number (2753235).

Almost surely, 2^13949686 is an apocalyptic number.

13949686 is a deficient number, since it is larger than the sum of its proper divisors (8076194).

13949686 is a wasteful number, since it uses less digits than its factorization.

13949686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367118.

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

The square root of 13949686 is about 3734.9278440152. The cubic root of 13949686 is about 240.7251562818.

The spelling of 13949686 in words is "thirteen million, nine hundred forty-nine thousand, six hundred eighty-six".