13911697 has 4 divisors (see below), whose sum is σ = 13953316. Its totient is φ = 13870080.

The previous prime is 13911691. The next prime is 13911719. The reversal of 13911697 is 79611931.

13911697 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 4857616 + 9054081 = 2204^2 + 3009^2 .

It is a cyclic number.

It is not a de Polignac number, because 13911697 - 2¹⁵ = 13878929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13911691) 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, 20304 + ... + 20977.

It is an arithmetic number, because the mean of its divisors is an integer number (3488329).

Almost surely, 2^13911697 is an apocalyptic number.

It is an amenable number.

13911697 is a deficient number, since it is larger than the sum of its proper divisors (41619).

13911697 is an equidigital number, since it uses as much as digits as its factorization.

13911697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41618.

The product of its digits is 10206, while the sum is 37.

The square root of 13911697 is about 3729.8387364603. The cubic root of 13911697 is about 240.5064363778.

The spelling of 13911697 in words is "thirteen million, nine hundred eleven thousand, six hundred ninety-seven".