432764809 has 9 divisors (see below), whose sum is σ = 440449159. Its totient is φ = 425213320.

The previous prime is 432764791. The next prime is 432764851. The reversal of 432764809 is 908467234.

The square root of 432764809 is 20803.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 409455225 + 23309584 = 20235^2 + 4828^2 .

It is not a de Polignac number, because 432764809 - 2⁵ = 432764777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (432764909) 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 8 ways as a sum of consecutive naturals, for example, 1476867 + ... + 1477159.

Almost surely, 2^432764809 is an apocalyptic number.

432764809 is the 20803-rd square number.

432764809 is the 10402-nd centered octagonal number.

It is an amenable number.

432764809 is a deficient number, since it is larger than the sum of its proper divisors (7684350).

432764809 is an frugal number, since it uses more digits than its factorization.

432764809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The cubic root of 432764809 is about 756.3984775609.

The spelling of 432764809 in words is "four hundred thirty-two million, seven hundred sixty-four thousand, eight hundred nine".