634304023 has 2 divisors, whose sum is σ = 634304024. Its totient is φ = 634304022.

The previous prime is 634304009. The next prime is 634304087. The reversal of 634304023 is 320403436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 634304023 - 2⁹ = 634303511 is a prime.

It is a super-3 number, since 3×634304023³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634304623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317152011 + 317152012.

It is an arithmetic number, because the mean of its divisors is an integer number (317152012).

Almost surely, 2^634304023 is an apocalyptic number.

634304023 is a deficient number, since it is larger than the sum of its proper divisors (1).

634304023 is an equidigital number, since it uses as much as digits as its factorization.

634304023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 634304023 is about 25185.3930483525. The cubic root of 634304023 is about 859.2096682725.

Adding to 634304023 its reverse (320403436), we get a palindrome (954707459).

The spelling of 634304023 in words is "six hundred thirty-four million, three hundred four thousand, twenty-three".