7666693 has 2 divisors, whose sum is σ = 7666694. Its totient is φ = 7666692.

The previous prime is 7666669. The next prime is 7666699. The reversal of 7666693 is 3966667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7656289 + 10404 = 2767^2 + 102^2 .

It is a cyclic number.

It is not a de Polignac number, because 7666693 - 2⁵ = 7666661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7666699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3833346 + 3833347.

It is an arithmetic number, because the mean of its divisors is an integer number (3833347).

Almost surely, 2^7666693 is an apocalyptic number.

It is an amenable number.

7666693 is a deficient number, since it is larger than the sum of its proper divisors (1).

7666693 is an equidigital number, since it uses as much as digits as its factorization.

7666693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 43.

The square root of 7666693 is about 2768.8793762098. The cubic root of 7666693 is about 197.1829490830.

The spelling of 7666693 in words is "seven million, six hundred sixty-six thousand, six hundred ninety-three".