13915972 has 12 divisors (see below), whose sum is σ = 27832000. Its totient is φ = 5963976.

The previous prime is 13915939. The next prime is 13915981. The reversal of 13915972 is 27951931.

13915972 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 248472 + ... + 248527.

Almost surely, 2^13915972 is an apocalyptic number.

It is an amenable number.

13915972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13915972 is a wasteful number, since it uses less digits than its factorization.

13915972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497010 (or 497008 counting only the distinct ones).

The product of its digits is 17010, while the sum is 37.

The square root of 13915972 is about 3730.4117735178. The cubic root of 13915972 is about 240.5310693592.

The spelling of 13915972 in words is "thirteen million, nine hundred fifteen thousand, nine hundred seventy-two".