669015713 has 2 divisors, whose sum is σ = 669015714. Its totient is φ = 669015712.

The previous prime is 669015667. The next prime is 669015749. The reversal of 669015713 is 317510966.

669015713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 625350049 + 43665664 = 25007^2 + 6608^2 .

It is a cyclic number.

It is not a de Polignac number, because 669015713 - 2¹² = 669011617 is a prime.

It is not a weakly prime, because it can be changed into another prime (669015793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334507856 + 334507857.

It is an arithmetic number, because the mean of its divisors is an integer number (334507857).

Almost surely, 2^669015713 is an apocalyptic number.

It is an amenable number.

669015713 is a deficient number, since it is larger than the sum of its proper divisors (1).

669015713 is an equidigital number, since it uses as much as digits as its factorization.

669015713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 669015713 is about 25865.3380608103. The cubic root of 669015713 is about 874.6053024753.

The spelling of 669015713 in words is "six hundred sixty-nine million, fifteen thousand, seven hundred thirteen".