764255693 has 2 divisors, whose sum is σ = 764255694. Its totient is φ = 764255692.

The previous prime is 764255671. The next prime is 764255711. The reversal of 764255693 is 396552467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 627903364 + 136352329 = 25058^2 + 11677^2 .

It is a cyclic number.

It is not a de Polignac number, because 764255693 - 2⁶ = 764255629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764255623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382127846 + 382127847.

It is an arithmetic number, because the mean of its divisors is an integer number (382127847).

Almost surely, 2^764255693 is an apocalyptic number.

It is an amenable number.

764255693 is a deficient number, since it is larger than the sum of its proper divisors (1).

764255693 is an equidigital number, since it uses as much as digits as its factorization.

764255693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 47.

The square root of 764255693 is about 27645.1748592770. The cubic root of 764255693 is about 914.2807183263.

The spelling of 764255693 in words is "seven hundred sixty-four million, two hundred fifty-five thousand, six hundred ninety-three".