764223069 has 4 divisors (see below), whose sum is σ = 1018964096. Its totient is φ = 509482044.

The previous prime is 764223029. The next prime is 764223071. The reversal of 764223069 is 960322467.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 764223069 - 2¹⁷ = 764091997 is a prime.

It is a super-2 number, since 2×764223069² = 1168073798383557522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764223029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127370509 + ... + 127370514.

It is an arithmetic number, because the mean of its divisors is an integer number (254741024).

Almost surely, 2^764223069 is an apocalyptic number.

It is an amenable number.

764223069 is a deficient number, since it is larger than the sum of its proper divisors (254741027).

764223069 is a wasteful number, since it uses less digits than its factorization.

764223069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254741026.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 764223069 is about 27644.5848042614. The cubic root of 764223069 is about 914.2677087542.

The spelling of 764223069 in words is "seven hundred sixty-four million, two hundred twenty-three thousand, sixty-nine".