13972216 has 16 divisors (see below), whose sum is σ = 26310240. Its totient is φ = 6956160.

The previous prime is 13972193. The next prime is 13972237. The reversal of 13972216 is 61227931.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1696 + ... + 5551.

It is an arithmetic number, because the mean of its divisors is an integer number (1644390).

Almost surely, 2^13972216 is an apocalyptic number.

It is an amenable number.

13972216 is a deficient number, since it is larger than the sum of its proper divisors (12338024).

13972216 is a wasteful number, since it uses less digits than its factorization.

13972216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7494 (or 7490 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 13972216 is about 3737.9427496953. The cubic root of 13972216 is about 240.8546841807.

The spelling of 13972216 in words is "thirteen million, nine hundred seventy-two thousand, two hundred sixteen".