764392949 has 2 divisors, whose sum is σ = 764392950. Its totient is φ = 764392948.

The previous prime is 764392927. The next prime is 764392957. The reversal of 764392949 is 949293467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 479391025 + 285001924 = 21895^2 + 16882^2 .

It is a cyclic number.

It is not a de Polignac number, because 764392949 - 2²⁴ = 747615733 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 764392949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764392969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382196474 + 382196475.

It is an arithmetic number, because the mean of its divisors is an integer number (382196475).

Almost surely, 2^764392949 is an apocalyptic number.

It is an amenable number.

764392949 is a deficient number, since it is larger than the sum of its proper divisors (1).

764392949 is an equidigital number, since it uses as much as digits as its factorization.

764392949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 53.

The square root of 764392949 is about 27647.6572063529. The cubic root of 764392949 is about 914.3354482653.

The spelling of 764392949 in words is "seven hundred sixty-four million, three hundred ninety-two thousand, nine hundred forty-nine".