13368897 has 6 divisors (see below), whose sum is σ = 19310642. Its totient is φ = 8912592.

The previous prime is 13368889. The next prime is 13368899. The reversal of 13368897 is 79886331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7420176 + 5948721 = 2724^2 + 2439^2 .

It is not a de Polignac number, because 13368897 - 2³ = 13368889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13368899) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 742708 + ... + 742725.

Almost surely, 2^13368897 is an apocalyptic number.

It is an amenable number.

13368897 is a deficient number, since it is larger than the sum of its proper divisors (5941745).

13368897 is a wasteful number, since it uses less digits than its factorization.

13368897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485439 (or 1485436 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 13368897 is about 3656.3502293954. The cubic root of 13368897 is about 237.3368600785.

The spelling of 13368897 in words is "thirteen million, three hundred sixty-eight thousand, eight hundred ninety-seven".