13379689 has 2 divisors, whose sum is σ = 13379690. Its totient is φ = 13379688.

The previous prime is 13379669. The next prime is 13379711. The reversal of 13379689 is 98697331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13213225 + 166464 = 3635^2 + 408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13379689 is a prime.

It is not a weakly prime, because it can be changed into another prime (13379609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6689844 + 6689845.

It is an arithmetic number, because the mean of its divisors is an integer number (6689845).

Almost surely, 2^13379689 is an apocalyptic number.

It is an amenable number.

13379689 is a deficient number, since it is larger than the sum of its proper divisors (1).

13379689 is an equidigital number, since it uses as much as digits as its factorization.

13379689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 46.

The square root of 13379689 is about 3657.8257202879. The cubic root of 13379689 is about 237.4007060461.

It can be divided in two parts, 1337 and 9689, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 13379689 in words is "thirteen million, three hundred seventy-nine thousand, six hundred eighty-nine".