764585749 has 2 divisors, whose sum is σ = 764585750. Its totient is φ = 764585748.

The previous prime is 764585743. The next prime is 764585807. The reversal of 764585749 is 947585467.

764585749 is digitally balanced in base 2, 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., 671328100 + 93257649 = 25910^2 + 9657^2 .

It is an emirp because it is prime and its reverse (947585467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 764585749 - 2²⁷ = 630368021 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 764585749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764585743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382292874 + 382292875.

It is an arithmetic number, because the mean of its divisors is an integer number (382292875).

Almost surely, 2^764585749 is an apocalyptic number.

It is an amenable number.

764585749 is a deficient number, since it is larger than the sum of its proper divisors (1).

764585749 is an equidigital number, since it uses as much as digits as its factorization.

764585749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8467200, while the sum is 55.

The square root of 764585749 is about 27651.1437195643. The cubic root of 764585749 is about 914.4123149500.

The spelling of 764585749 in words is "seven hundred sixty-four million, five hundred eighty-five thousand, seven hundred forty-nine".