13487293 has 2 divisors, whose sum is σ = 13487294. Its totient is φ = 13487292.

The previous prime is 13487267. The next prime is 13487297. The reversal of 13487293 is 39278431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13344409 + 142884 = 3653^2 + 378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13487293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13487297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6743646 + 6743647.

It is an arithmetic number, because the mean of its divisors is an integer number (6743647).

Almost surely, 2^13487293 is an apocalyptic number.

It is an amenable number.

13487293 is a deficient number, since it is larger than the sum of its proper divisors (1).

13487293 is an equidigital number, since it uses as much as digits as its factorization.

13487293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 13487293 is about 3672.5050034003. The cubic root of 13487293 is about 238.0354265462.

The spelling of 13487293 in words is "thirteen million, four hundred eighty-seven thousand, two hundred ninety-three".