13490897 has 4 divisors (see below), whose sum is σ = 15418176. Its totient is φ = 11563620.

The previous prime is 13490879. The next prime is 13490947. The reversal of 13490897 is 79809431.

It is a happy number.

13490897 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13490897 - 2⁸ = 13490641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13490297) 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, 963629 + ... + 963642.

It is an arithmetic number, because the mean of its divisors is an integer number (3854544).

Almost surely, 2^13490897 is an apocalyptic number.

It is an amenable number.

13490897 is a deficient number, since it is larger than the sum of its proper divisors (1927279).

13490897 is an equidigital number, since it uses as much as digits as its factorization.

13490897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927278.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 13490897 is about 3672.9956438852. The cubic root of 13490897 is about 238.0566268290.

The spelling of 13490897 in words is "thirteen million, four hundred ninety thousand, eight hundred ninety-seven".