6403430233 has 2 divisors, whose sum is σ = 6403430234. Its totient is φ = 6403430232.

The previous prime is 6403430191. The next prime is 6403430249. The reversal of 6403430233 is 3320343046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4501336464 + 1902093769 = 67092^2 + 43613^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6403430233 is a prime.

It is not a weakly prime, because it can be changed into another prime (6403430263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201715116 + 3201715117.

It is an arithmetic number, because the mean of its divisors is an integer number (3201715117).

Almost surely, 2^6403430233 is an apocalyptic number.

It is an amenable number.

6403430233 is a deficient number, since it is larger than the sum of its proper divisors (1).

6403430233 is an equidigital number, since it uses as much as digits as its factorization.

6403430233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 28.

The square root of 6403430233 is about 80021.4360843393. The cubic root of 6403430233 is about 1856.9671769345.

Adding to 6403430233 its reverse (3320343046), we get a palindrome (9723773279).

The spelling of 6403430233 in words is "six billion, four hundred three million, four hundred thirty thousand, two hundred thirty-three".