7056689 has 2 divisors, whose sum is σ = 7056690. Its totient is φ = 7056688.

The previous prime is 7056667. The next prime is 7056697. The reversal of 7056689 is 9866507.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6801664 + 255025 = 2608^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 7056689 - 2²⁰ = 6008113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7056289) 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, 3528344 + 3528345.

It is an arithmetic number, because the mean of its divisors is an integer number (3528345).

Almost surely, 2^7056689 is an apocalyptic number.

It is an amenable number.

7056689 is a deficient number, since it is larger than the sum of its proper divisors (1).

7056689 is an equidigital number, since it uses as much as digits as its factorization.

7056689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 7056689 is about 2656.4429224058. The cubic root of 7056689 is about 191.8081217477.

The spelling of 7056689 in words is "seven million, fifty-six thousand, six hundred eighty-nine".