7659997 has 2 divisors, whose sum is σ = 7659998. Its totient is φ = 7659996.

The previous prime is 7659991. The next prime is 7660001. The reversal of 7659997 is 7999567.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7322436 + 337561 = 2706^2 + 581^2 .

It is a cyclic number.

It is not a de Polignac number, because 7659997 - 2¹⁵ = 7627229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7659991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3829998 + 3829999.

It is an arithmetic number, because the mean of its divisors is an integer number (3829999).

Almost surely, 2^7659997 is an apocalyptic number.

It is an amenable number.

7659997 is a deficient number, since it is larger than the sum of its proper divisors (1).

7659997 is an equidigital number, since it uses as much as digits as its factorization.

7659997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1071630, while the sum is 52.

The square root of 7659997 is about 2767.6699586475. The cubic root of 7659997 is about 197.1255266019.

The spelling of 7659997 in words is "seven million, six hundred fifty-nine thousand, nine hundred ninety-seven".