764394667 has 2 divisors, whose sum is σ = 764394668. Its totient is φ = 764394666.

The previous prime is 764394649. The next prime is 764394679. The reversal of 764394667 is 766493467.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 764394667 - 2¹¹ = 764392619 is a prime.

It is not a weakly prime, because it can be changed into another prime (764394067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382197333 + 382197334.

It is an arithmetic number, because the mean of its divisors is an integer number (382197334).

Almost surely, 2^764394667 is an apocalyptic number.

764394667 is a deficient number, since it is larger than the sum of its proper divisors (1).

764394667 is an equidigital number, since it uses as much as digits as its factorization.

764394667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 52.

The square root of 764394667 is about 27647.6882758758. The cubic root of 764394667 is about 914.3361332652.

The spelling of 764394667 in words is "seven hundred sixty-four million, three hundred ninety-four thousand, six hundred sixty-seven".