13740869 has 2 divisors, whose sum is σ = 13740870. Its totient is φ = 13740868.

The previous prime is 13740841. The next prime is 13740887. The reversal of 13740869 is 96804731.

13740869 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., 13410244 + 330625 = 3662^2 + 575^2 .

It is a cyclic number.

It is not a de Polignac number, because 13740869 - 2²⁰ = 12692293 is a prime.

It is a super-2 number, since 2×13740869² = 377622961750322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13740889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6870434 + 6870435.

It is an arithmetic number, because the mean of its divisors is an integer number (6870435).

Almost surely, 2^13740869 is an apocalyptic number.

It is an amenable number.

13740869 is a deficient number, since it is larger than the sum of its proper divisors (1).

13740869 is an equidigital number, since it uses as much as digits as its factorization.

13740869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 13740869 is about 3706.8678152856. The cubic root of 13740869 is about 239.5179502558.

The spelling of 13740869 in words is "thirteen million, seven hundred forty thousand, eight hundred sixty-nine".