431000663 has 2 divisors, whose sum is σ = 431000664. Its totient is φ = 431000662.

The previous prime is 431000599. The next prime is 431000699. The reversal of 431000663 is 366000134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431000663 - 2⁶ = 431000599 is a 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 (431000963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215500331 + 215500332.

It is an arithmetic number, because the mean of its divisors is an integer number (215500332).

Almost surely, 2^431000663 is an apocalyptic number.

431000663 is a deficient number, since it is larger than the sum of its proper divisors (1).

431000663 is an equidigital number, since it uses as much as digits as its factorization.

431000663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 431000663 is about 20760.5554598137. Note that the first 3 decimals coincide. The cubic root of 431000663 is about 755.3692698237.

Adding to 431000663 its reverse (366000134), we get a palindrome (797000797).

The spelling of 431000663 in words is "four hundred thirty-one million, six hundred sixty-three", and thus it is an aban number.