13972197 has 8 divisors (see below), whose sum is σ = 18744544. Its totient is φ = 9257328.

The previous prime is 13972193. The next prime is 13972237. The reversal of 13972197 is 79127931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13972197 - 2² = 13972193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13972193) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13798 + ... + 14775.

It is an arithmetic number, because the mean of its divisors is an integer number (2343068).

Almost surely, 2^13972197 is an apocalyptic number.

It is an amenable number.

13972197 is a deficient number, since it is larger than the sum of its proper divisors (4772347).

13972197 is a wasteful number, since it uses less digits than its factorization.

13972197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28739.

The product of its digits is 23814, while the sum is 39.

The square root of 13972197 is about 3737.9402081895. The cubic root of 13972197 is about 240.8545750059.

The spelling of 13972197 in words is "thirteen million, nine hundred seventy-two thousand, one hundred ninety-seven".