13486709 has 2 divisors, whose sum is σ = 13486710. Its totient is φ = 13486708.

The previous prime is 13486703. The next prime is 13486721. The reversal of 13486709 is 90768431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9284209 + 4202500 = 3047^2 + 2050^2 .

It is a cyclic number.

It is not a de Polignac number, because 13486709 - 2⁸ = 13486453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13486703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6743354 + 6743355.

It is an arithmetic number, because the mean of its divisors is an integer number (6743355).

Almost surely, 2^13486709 is an apocalyptic number.

It is an amenable number.

13486709 is a deficient number, since it is larger than the sum of its proper divisors (1).

13486709 is an equidigital number, since it uses as much as digits as its factorization.

13486709 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 13486709 is about 3672.4254927772. The cubic root of 13486709 is about 238.0319908507.

The spelling of 13486709 in words is "thirteen million, four hundred eighty-six thousand, seven hundred nine".