13983831 has 12 divisors (see below), whose sum is σ = 20236320. Its totient is φ = 9305280.

The previous prime is 13983803. The next prime is 13983841. The reversal of 13983831 is 13838931.

13983831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13983831 - 2⁷ = 13983703 is a prime.

It is a super-2 number, since 2×13983831² = 391095058873122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13983841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5391 + ... + 7551.

It is an arithmetic number, because the mean of its divisors is an integer number (1686360).

Almost surely, 2^13983831 is an apocalyptic number.

13983831 is a deficient number, since it is larger than the sum of its proper divisors (6252489).

13983831 is a wasteful number, since it uses less digits than its factorization.

13983831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886 (or 2883 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 13983831 is about 3739.4960890473. The cubic root of 13983831 is about 240.9214059359.

The spelling of 13983831 in words is "thirteen million, nine hundred eighty-three thousand, eight hundred thirty-one".