7656713 has 2 divisors, whose sum is σ = 7656714. Its totient is φ = 7656712.

The previous prime is 7656697. The next prime is 7656731. The reversal of 7656713 is 3176567.

Together with next prime (7656731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7011904 + 644809 = 2648^2 + 803^2 .

It is a cyclic number.

It is not a de Polignac number, because 7656713 - 2⁴ = 7656697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7656763) 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, 3828356 + 3828357.

It is an arithmetic number, because the mean of its divisors is an integer number (3828357).

Almost surely, 2^7656713 is an apocalyptic number.

It is an amenable number.

7656713 is a deficient number, since it is larger than the sum of its proper divisors (1).

7656713 is an equidigital number, since it uses as much as digits as its factorization.

7656713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 35.

The square root of 7656713 is about 2767.0766162143. The cubic root of 7656713 is about 197.0973519710.

The spelling of 7656713 in words is "seven million, six hundred fifty-six thousand, seven hundred thirteen".