15680713 has 2 divisors, whose sum is σ = 15680714. Its totient is φ = 15680712.

The previous prime is 15680701. The next prime is 15680741. The reversal of 15680713 is 31708651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9935104 + 5745609 = 3152^2 + 2397^2 .

It is a cyclic number.

It is not a de Polignac number, because 15680713 - 2¹⁷ = 15549641 is a prime.

It is not a weakly prime, because it can be changed into another prime (15680773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7840356 + 7840357.

It is an arithmetic number, because the mean of its divisors is an integer number (7840357).

Almost surely, 2^15680713 is an apocalyptic number.

It is an amenable number.

15680713 is a deficient number, since it is larger than the sum of its proper divisors (1).

15680713 is an equidigital number, since it uses as much as digits as its factorization.

15680713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 15680713 is about 3959.8880034668. Note that the first 3 decimals coincide. The cubic root of 15680713 is about 250.2967835387.

The spelling of 15680713 in words is "fifteen million, six hundred eighty thousand, seven hundred thirteen".