431889023 has 2 divisors, whose sum is σ = 431889024. Its totient is φ = 431889022.

The previous prime is 431888999. The next prime is 431889037. The reversal of 431889023 is 320988134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431889023 - 2⁶ = 431888959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431889223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215944511 + 215944512.

It is an arithmetic number, because the mean of its divisors is an integer number (215944512).

Almost surely, 2^431889023 is an apocalyptic number.

431889023 is a deficient number, since it is larger than the sum of its proper divisors (1).

431889023 is an equidigital number, since it uses as much as digits as its factorization.

431889023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 431889023 is about 20781.9398276484. The cubic root of 431889023 is about 755.8878918660.

The spelling of 431889023 in words is "four hundred thirty-one million, eight hundred eighty-nine thousand, twenty-three".