13319689 has 2 divisors, whose sum is σ = 13319690. Its totient is φ = 13319688.

The previous prime is 13319641. The next prime is 13319707. The reversal of 13319689 is 98691331.

13319689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12020089 + 1299600 = 3467^2 + 1140^2 .

It is a cyclic number.

It is not a de Polignac number, because 13319689 - 2⁷ = 13319561 is a prime.

It is not a weakly prime, because it can be changed into another prime (13319639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6659844 + 6659845.

It is an arithmetic number, because the mean of its divisors is an integer number (6659845).

Almost surely, 2^13319689 is an apocalyptic number.

It is an amenable number.

13319689 is a deficient number, since it is larger than the sum of its proper divisors (1).

13319689 is an equidigital number, since it uses as much as digits as its factorization.

13319689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 40.

The square root of 13319689 is about 3649.6149111927. The cubic root of 13319689 is about 237.0453069630.

The spelling of 13319689 in words is "thirteen million, three hundred nineteen thousand, six hundred eighty-nine".