13982691 has 8 divisors (see below), whose sum is σ = 18696960. Its totient is φ = 9295112.

The previous prime is 13982677. The next prime is 13982693. The reversal of 13982691 is 19628931.

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 13982691 - 2⁵ = 13982659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13982693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5415 + ... + 7568.

It is an arithmetic number, because the mean of its divisors is an integer number (2337120).

Almost surely, 2^13982691 is an apocalyptic number.

13982691 is a deficient number, since it is larger than the sum of its proper divisors (4714269).

13982691 is a wasteful number, since it uses less digits than its factorization.

13982691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13345.

The product of its digits is 23328, while the sum is 39.

The square root of 13982691 is about 3739.3436589862. The cubic root of 13982691 is about 240.9148589016.

The spelling of 13982691 in words is "thirteen million, nine hundred eighty-two thousand, six hundred ninety-one".