432643919 has 2 divisors, whose sum is σ = 432643920. Its totient is φ = 432643918.

The previous prime is 432643877. The next prime is 432643943. The reversal of 432643919 is 919346234.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432643919 is a prime.

It is a super-2 number, since 2×432643919² = 374361521295357122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432643949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216321959 + 216321960.

It is an arithmetic number, because the mean of its divisors is an integer number (216321960).

Almost surely, 2^432643919 is an apocalyptic number.

432643919 is a deficient number, since it is larger than the sum of its proper divisors (1).

432643919 is an equidigital number, since it uses as much as digits as its factorization.

432643919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 41.

The square root of 432643919 is about 20800.0942065174. The cubic root of 432643919 is about 756.3280393569.

The spelling of 432643919 in words is "four hundred thirty-two million, six hundred forty-three thousand, nine hundred nineteen".