432321899 has 2 divisors, whose sum is σ = 432321900. Its totient is φ = 432321898.

The previous prime is 432321881. The next prime is 432321907. The reversal of 432321899 is 998123234.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432321899 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (432321829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216160949 + 216160950.

It is an arithmetic number, because the mean of its divisors is an integer number (216160950).

Almost surely, 2^432321899 is an apocalyptic number.

432321899 is a deficient number, since it is larger than the sum of its proper divisors (1).

432321899 is an equidigital number, since it uses as much as digits as its factorization.

432321899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 432321899 is about 20792.3519352670. The cubic root of 432321899 is about 756.1403459709.

The spelling of 432321899 in words is "four hundred thirty-two million, three hundred twenty-one thousand, eight hundred ninety-nine".