13897193 has 4 divisors (see below), whose sum is σ = 13908048. Its totient is φ = 13886340.

The previous prime is 13897187. The next prime is 13897223. The reversal of 13897193 is 39179831.

13897193 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13897193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13897193.

It is not an unprimeable number, because it can be changed into a prime (13893193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3203 + ... + 6168.

It is an arithmetic number, because the mean of its divisors is an integer number (3477012).

Almost surely, 2^13897193 is an apocalyptic number.

It is an amenable number.

13897193 is a deficient number, since it is larger than the sum of its proper divisors (10855).

13897193 is an equidigital number, since it uses as much as digits as its factorization.

13897193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10854.

The product of its digits is 40824, while the sum is 41.

The square root of 13897193 is about 3727.8939094347. The cubic root of 13897193 is about 240.4228252428.

The spelling of 13897193 in words is "thirteen million, eight hundred ninety-seven thousand, one hundred ninety-three".