7657613 has 2 divisors, whose sum is σ = 7657614. Its totient is φ = 7657612.

The previous prime is 7657609. The next prime is 7657679. The reversal of 7657613 is 3167567.

7657613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6538249 + 1119364 = 2557^2 + 1058^2 .

It is a cyclic number.

It is not a de Polignac number, because 7657613 - 2² = 7657609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7657313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3828806 + 3828807.

It is an arithmetic number, because the mean of its divisors is an integer number (3828807).

Almost surely, 2^7657613 is an apocalyptic number.

It is an amenable number.

7657613 is a deficient number, since it is larger than the sum of its proper divisors (1).

7657613 is an equidigital number, since it uses as much as digits as its factorization.

7657613 is an evil number, because the sum of its binary digits is even.

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

The square root of 7657613 is about 2767.2392379409. The cubic root of 7657613 is about 197.1050741997.

The spelling of 7657613 in words is "seven million, six hundred fifty-seven thousand, six hundred thirteen".