13972347 has 12 divisors (see below), whose sum is σ = 20728240. Its totient is φ = 9062928.

The previous prime is 13972333. The next prime is 13972363. The reversal of 13972347 is 74327931.

It is not a de Polignac number, because 13972347 - 2⁴ = 13972331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13972307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20647 + ... + 21312.

Almost surely, 2^13972347 is an apocalyptic number.

13972347 is a deficient number, since it is larger than the sum of its proper divisors (6755893).

13972347 is a wasteful number, since it uses less digits than its factorization.

13972347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42002 (or 41999 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 13972347 is about 3737.9602726621. The cubic root of 13972347 is about 240.8554369095.

The spelling of 13972347 in words is "thirteen million, nine hundred seventy-two thousand, three hundred forty-seven".