432439939 has 2 divisors, whose sum is σ = 432439940. Its totient is φ = 432439938.

The previous prime is 432439937. The next prime is 432439963. The reversal of 432439939 is 939934234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 432439939 - 2¹ = 432439937 is a prime.

Together with 432439937, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (432439933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216219969 + 216219970.

It is an arithmetic number, because the mean of its divisors is an integer number (216219970).

Almost surely, 2^432439939 is an apocalyptic number.

432439939 is a deficient number, since it is larger than the sum of its proper divisors (1).

432439939 is an equidigital number, since it uses as much as digits as its factorization.

432439939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 46.

The square root of 432439939 is about 20795.1902852559. The cubic root of 432439939 is about 756.2091578790.

The spelling of 432439939 in words is "four hundred thirty-two million, four hundred thirty-nine thousand, nine hundred thirty-nine".