13797191 has 4 divisors (see below), whose sum is σ = 13804632. Its totient is φ = 13789752.

The previous prime is 13797181. The next prime is 13797193. The reversal of 13797191 is 19179731.

13797191 is digitally balanced in base 2, because in such base 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 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-13797191 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 (13797193) 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, 1556 + ... + 5478.

It is an arithmetic number, because the mean of its divisors is an integer number (3451158).

Almost surely, 2^13797191 is an apocalyptic number.

13797191 is a deficient number, since it is larger than the sum of its proper divisors (7441).

13797191 is an equidigital number, since it uses as much as digits as its factorization.

13797191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7440.

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

The square root of 13797191 is about 3714.4570262691. The cubic root of 13797191 is about 239.8447549248.

The spelling of 13797191 in words is "thirteen million, seven hundred ninety-seven thousand, one hundred ninety-one".