432989389 has 4 divisors (see below), whose sum is σ = 494845024. Its totient is φ = 371133756.

The previous prime is 432989363. The next prime is 432989393. The reversal of 432989389 is 983989234.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 983989234 = 2 ⋅491994617.

It is not a de Polignac number, because 432989389 - 2⁵ = 432989357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432989399) 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, 30927807 + ... + 30927820.

It is an arithmetic number, because the mean of its divisors is an integer number (123711256).

Almost surely, 2^432989389 is an apocalyptic number.

It is an amenable number.

432989389 is a deficient number, since it is larger than the sum of its proper divisors (61855635).

432989389 is an equidigital number, since it uses as much as digits as its factorization.

432989389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61855634.

The product of its digits is 3359232, while the sum is 55.

The square root of 432989389 is about 20808.3970790640. The cubic root of 432989389 is about 756.5292973430.

The spelling of 432989389 in words is "four hundred thirty-two million, nine hundred eighty-nine thousand, three hundred eighty-nine".