13972516 has 12 divisors (see below), whose sum is σ = 24796800. Its totient is φ = 6887720.

The previous prime is 13972507. The next prime is 13972573. The reversal of 13972516 is 61527931.

It is a super-3 number, since 3×13972516³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24316 + ... + 24883.

It is an arithmetic number, because the mean of its divisors is an integer number (2066400).

Almost surely, 2^13972516 is an apocalyptic number.

It is an amenable number.

13972516 is a deficient number, since it is larger than the sum of its proper divisors (10824284).

13972516 is a wasteful number, since it uses less digits than its factorization.

13972516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49274 (or 49272 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 13972516 is about 3737.9828785055. The cubic root of 13972516 is about 240.8564079800.

The spelling of 13972516 in words is "thirteen million, nine hundred seventy-two thousand, five hundred sixteen".