13976661 has 8 divisors (see below), whose sum is σ = 18810144. Its totient is φ = 9230480.

The previous prime is 13976657. The next prime is 13976681. The reversal of 13976661 is 16667931.

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

It is a cyclic number.

It is not a de Polignac number, because 13976661 - 2² = 13976657 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13976621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21450 + ... + 22091.

It is an arithmetic number, because the mean of its divisors is an integer number (2351268).

Almost surely, 2^13976661 is an apocalyptic number.

It is an amenable number.

13976661 is a deficient number, since it is larger than the sum of its proper divisors (4833483).

13976661 is a wasteful number, since it uses less digits than its factorization.

13976661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43651.

The product of its digits is 40824, while the sum is 39.

The square root of 13976661 is about 3738.5372808092. The cubic root of 13976661 is about 240.8802226150.

The spelling of 13976661 in words is "thirteen million, nine hundred seventy-six thousand, six hundred sixty-one".