423331633 has 2 divisors, whose sum is σ = 423331634. Its totient is φ = 423331632.

The previous prime is 423331613. The next prime is 423331639. The reversal of 423331633 is 336133324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413390224 + 9941409 = 20332^2 + 3153^2 .

It is a cyclic number.

It is not a de Polignac number, because 423331633 - 2²¹ = 421234481 is a prime.

It is not a weakly prime, because it can be changed into another prime (423331639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211665816 + 211665817.

It is an arithmetic number, because the mean of its divisors is an integer number (211665817).

Almost surely, 2^423331633 is an apocalyptic number.

It is an amenable number.

423331633 is a deficient number, since it is larger than the sum of its proper divisors (1).

423331633 is an equidigital number, since it uses as much as digits as its factorization.

423331633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 28.

The square root of 423331633 is about 20575.0244957327. The cubic root of 423331633 is about 750.8621983647.

Adding to 423331633 its reverse (336133324), we get a palindrome (759464957).

The spelling of 423331633 in words is "four hundred twenty-three million, three hundred thirty-one thousand, six hundred thirty-three".