13903972 has 24 divisors (see below), whose sum is σ = 25855200. Its totient is φ = 6523776.

The previous prime is 13903949. The next prime is 13903979. The reversal of 13903972 is 27930931.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13903979) 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, 7779 + ... + 9397.

It is an arithmetic number, because the mean of its divisors is an integer number (1077300).

Almost surely, 2^13903972 is an apocalyptic number.

It is an amenable number.

13903972 is a deficient number, since it is larger than the sum of its proper divisors (11951228).

13903972 is a wasteful number, since it uses less digits than its factorization.

13903972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755 (or 1753 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 13903972 is about 3728.8030251007. The cubic root of 13903972 is about 240.4619113469.

The spelling of 13903972 in words is "thirteen million, nine hundred three thousand, nine hundred seventy-two".