13957966 has 16 divisors (see below), whose sum is σ = 23328000. Its totient is φ = 6209080.

The previous prime is 13957949. The next prime is 13957981. The reversal of 13957966 is 66975931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5716 + ... + 7783.

It is an arithmetic number, because the mean of its divisors is an integer number (1458000).

Almost surely, 2^13957966 is an apocalyptic number.

13957966 is a deficient number, since it is larger than the sum of its proper divisors (9370034).

13957966 is a wasteful number, since it uses less digits than its factorization.

13957966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13559.

The product of its digits is 306180, while the sum is 46.

The square root of 13957966 is about 3736.0361347289. The cubic root of 13957966 is about 240.7727752763.

The spelling of 13957966 in words is "thirteen million, nine hundred fifty-seven thousand, nine hundred sixty-six".