13917197 has 12 divisors (see below), whose sum is σ = 16150176. Its totient is φ = 11748000.

The previous prime is 13917181. The next prime is 13917199. The reversal of 13917197 is 79171931.

It is not a de Polignac number, because 13917197 - 2⁴ = 13917181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13917197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13917199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55322 + ... + 55572.

It is an arithmetic number, because the mean of its divisors is an integer number (1345848).

Almost surely, 2^13917197 is an apocalyptic number.

It is an amenable number.

13917197 is a deficient number, since it is larger than the sum of its proper divisors (2232979).

13917197 is an frugal number, since it uses more digits than its factorization.

13917197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 347 counting only the distinct ones).

The product of its digits is 11907, while the sum is 38.

The square root of 13917197 is about 3730.5759608940. The cubic root of 13917197 is about 240.5381270028.

The spelling of 13917197 in words is "thirteen million, nine hundred seventeen thousand, one hundred ninety-seven".