13831916 has 18 divisors (see below), whose sum is σ = 28158228. Its totient is φ = 5927880.

The previous prime is 13831903. The next prime is 13831919. The reversal of 13831916 is 61913831.

It is not an unprimeable number, because it can be changed into a prime (13831919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35090 + ... + 35481.

It is an arithmetic number, because the mean of its divisors is an integer number (1564346).

Almost surely, 2^13831916 is an apocalyptic number.

It is an amenable number.

13831916 is an abundant number, since it is smaller than the sum of its proper divisors (14326312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13831916 is a wasteful number, since it uses less digits than its factorization.

13831916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70589 (or 70580 counting only the distinct ones).

The product of its digits is 3888, while the sum is 32.

The square root of 13831916 is about 3719.1283925135. The cubic root of 13831916 is about 240.0458014439.

The spelling of 13831916 in words is "thirteen million, eight hundred thirty-one thousand, nine hundred sixteen".