13982891 has 24 divisors (see below), whose sum is σ = 16654464. Its totient is φ = 11681280.

The previous prime is 13982887. The next prime is 13982893. The reversal of 13982891 is 19828931.

It is not a de Polignac number, because 13982891 - 2² = 13982887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13982893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88985 + ... + 89141.

It is an arithmetic number, because the mean of its divisors is an integer number (693936).

Almost surely, 2^13982891 is an apocalyptic number.

13982891 is a deficient number, since it is larger than the sum of its proper divisors (2671573).

13982891 is a wasteful number, since it uses less digits than its factorization.

13982891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 218 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 13982891 is about 3739.3704015516. The cubic root of 13982891 is about 240.9160075298.

The spelling of 13982891 in words is "thirteen million, nine hundred eighty-two thousand, eight hundred ninety-one".