13379869 has 2 divisors, whose sum is σ = 13379870. Its totient is φ = 13379868.

The previous prime is 13379851. The next prime is 13379881. The reversal of 13379869 is 96897331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13227769 + 152100 = 3637^2 + 390^2 .

It is a cyclic number.

It is not a de Polignac number, because 13379869 - 2²¹ = 11282717 is a prime.

It is a super-2 number, since 2×13379869² = 358041788914322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13379809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6689934 + 6689935.

It is an arithmetic number, because the mean of its divisors is an integer number (6689935).

Almost surely, 2^13379869 is an apocalyptic number.

It is an amenable number.

13379869 is a deficient number, since it is larger than the sum of its proper divisors (1).

13379869 is an equidigital number, since it uses as much as digits as its factorization.

13379869 is an odious number, because the sum of its binary digits is odd.

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

The square root of 13379869 is about 3657.8503249860. The cubic root of 13379869 is about 237.4017706432.

The spelling of 13379869 in words is "thirteen million, three hundred seventy-nine thousand, eight hundred sixty-nine".