632439329 has 2 divisors, whose sum is σ = 632439330. Its totient is φ = 632439328.

The previous prime is 632439317. The next prime is 632439359. The reversal of 632439329 is 923934236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 514064929 + 118374400 = 22673^2 + 10880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632439329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (632439359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316219664 + 316219665.

It is an arithmetic number, because the mean of its divisors is an integer number (316219665).

Almost surely, 2^632439329 is an apocalyptic number.

It is an amenable number.

632439329 is a deficient number, since it is larger than the sum of its proper divisors (1).

632439329 is an equidigital number, since it uses as much as digits as its factorization.

632439329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 41.

The square root of 632439329 is about 25148.3464466354. The cubic root of 632439329 is about 858.3668885699.

The spelling of 632439329 in words is "six hundred thirty-two million, four hundred thirty-nine thousand, three hundred twenty-nine".