764090065 has 4 divisors (see below), whose sum is σ = 916908084. Its totient is φ = 611272048.

The previous prime is 764090053. The next prime is 764090081. The reversal of 764090065 is 560090467.

764090065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 335475856 + 428614209 = 18316^2 + 20703^2 .

It is a cyclic number.

It is not a de Polignac number, because 764090065 - 2²⁷ = 629872337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76409002 + ... + 76409011.

It is an arithmetic number, because the mean of its divisors is an integer number (229227021).

Almost surely, 2^764090065 is an apocalyptic number.

It is an amenable number.

764090065 is a deficient number, since it is larger than the sum of its proper divisors (152818019).

764090065 is a wasteful number, since it uses less digits than its factorization.

764090065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152818018.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 764090065 is about 27642.1790928284. The cubic root of 764090065 is about 914.2146665111.

The spelling of 764090065 in words is "seven hundred sixty-four million, ninety thousand, sixty-five".