13090897 has 4 divisors (see below), whose sum is σ = 13513216. Its totient is φ = 12668580.

The previous prime is 13090873. The next prime is 13090907. The reversal of 13090897 is 79809031.

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 an emirpimes, since its reverse is a distinct semiprime: 79809031 = 239 ⋅333929.

It is a cyclic number.

It is not a de Polignac number, because 13090897 - 2²³ = 4702289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13094897) 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, 211113 + ... + 211174.

It is an arithmetic number, because the mean of its divisors is an integer number (3378304).

Almost surely, 2^13090897 is an apocalyptic number.

It is an amenable number.

13090897 is a deficient number, since it is larger than the sum of its proper divisors (422319).

13090897 is an equidigital number, since it uses as much as digits as its factorization.

13090897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422318.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 13090897 is about 3618.1344640574. The cubic root of 13090897 is about 235.6802202028.

The spelling of 13090897 in words is "thirteen million, ninety thousand, eight hundred ninety-seven".