13707689 has 2 divisors, whose sum is σ = 13707690. Its totient is φ = 13707688.

The previous prime is 13707679. The next prime is 13707713. The reversal of 13707689 is 98670731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13690000 + 17689 = 3700^2 + 133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13707689 is a prime.

It is not a weakly prime, because it can be changed into another prime (13707679) 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, 6853844 + 6853845.

It is an arithmetic number, because the mean of its divisors is an integer number (6853845).

Almost surely, 2^13707689 is an apocalyptic number.

It is an amenable number.

13707689 is a deficient number, since it is larger than the sum of its proper divisors (1).

13707689 is an equidigital number, since it uses as much as digits as its factorization.

13707689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 13707689 is about 3702.3896337366. The cubic root of 13707689 is about 239.3250073186.

The spelling of 13707689 in words is "thirteen million, seven hundred seven thousand, six hundred eighty-nine".