764423329 has 2 divisors, whose sum is σ = 764423330. Its totient is φ = 764423328.

The previous prime is 764423323. The next prime is 764423339. The reversal of 764423329 is 923324467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438693025 + 325730304 = 20945^2 + 18048^2 .

It is a cyclic number.

It is not a de Polignac number, because 764423329 - 2¹³ = 764415137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 764423291 and 764423300.

It is not a weakly prime, because it can be changed into another prime (764423323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382211664 + 382211665.

It is an arithmetic number, because the mean of its divisors is an integer number (382211665).

Almost surely, 2^764423329 is an apocalyptic number.

It is an amenable number.

764423329 is a deficient number, since it is larger than the sum of its proper divisors (1).

764423329 is an equidigital number, since it uses as much as digits as its factorization.

764423329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 40.

The square root of 764423329 is about 27648.2066145347. The cubic root of 764423329 is about 914.3475612076.

The spelling of 764423329 in words is "seven hundred sixty-four million, four hundred twenty-three thousand, three hundred twenty-nine".