13489797 has 4 divisors (see below), whose sum is σ = 17986400. Its totient is φ = 8993196.

The previous prime is 13489783. The next prime is 13489837. The reversal of 13489797 is 79798431.

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 not a de Polignac number, because 13489797 - 2⁴ = 13489781 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 (13489097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2248297 + ... + 2248302.

It is an arithmetic number, because the mean of its divisors is an integer number (4496600).

Almost surely, 2^13489797 is an apocalyptic number.

It is an amenable number.

13489797 is a deficient number, since it is larger than the sum of its proper divisors (4496603).

13489797 is an equidigital number, since it uses as much as digits as its factorization.

13489797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496602.

The product of its digits is 381024, while the sum is 48.

The square root of 13489797 is about 3672.8458992993. The cubic root of 13489797 is about 238.0501565548.

The spelling of 13489797 in words is "thirteen million, four hundred eighty-nine thousand, seven hundred ninety-seven".