13487737 has 2 divisors, whose sum is σ = 13487738. Its totient is φ = 13487736.

The previous prime is 13487723. The next prime is 13487779. The reversal of 13487737 is 73778431.

13487737 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13169641 + 318096 = 3629^2 + 564^2 .

It is an emirp because it is prime and its reverse (73778431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13487737 - 2⁷ = 13487609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13487737.

It is not a weakly prime, because it can be changed into another prime (13487707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6743868 + 6743869.

It is an arithmetic number, because the mean of its divisors is an integer number (6743869).

Almost surely, 2^13487737 is an apocalyptic number.

It is an amenable number.

13487737 is a deficient number, since it is larger than the sum of its proper divisors (1).

13487737 is an equidigital number, since it uses as much as digits as its factorization.

13487737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 40.

The square root of 13487737 is about 3672.5654521057. The cubic root of 13487737 is about 238.0380385497.

The spelling of 13487737 in words is "thirteen million, four hundred eighty-seven thousand, seven hundred thirty-seven".