432431999 has 2 divisors, whose sum is σ = 432432000. Its totient is φ = 432431998.

The previous prime is 432431983. The next prime is 432432031. The reversal of 432431999 is 999134234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 432431999 - 2⁴ = 432431983 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432431939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216215999 + 216216000.

It is an arithmetic number, because the mean of its divisors is an integer number (216216000).

Almost surely, 2^432431999 is an apocalyptic number.

432431999 is a deficient number, since it is larger than the sum of its proper divisors (1).

432431999 is an equidigital number, since it uses as much as digits as its factorization.

432431999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 44.

The square root of 432431999 is about 20794.9993748497. Note that the first 3 decimals coincide. The cubic root of 432431999 is about 756.2045296159.

The spelling of 432431999 in words is "four hundred thirty-two million, four hundred thirty-one thousand, nine hundred ninety-nine".