634324529 has 2 divisors, whose sum is σ = 634324530. Its totient is φ = 634324528.

The previous prime is 634324501. The next prime is 634324547. The reversal of 634324529 is 925423436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 631366129 + 2958400 = 25127^2 + 1720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634324529 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 634324492 and 634324501.

It is not a weakly prime, because it can be changed into another prime (634324589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317162264 + 317162265.

It is an arithmetic number, because the mean of its divisors is an integer number (317162265).

Almost surely, 2^634324529 is an apocalyptic number.

It is an amenable number.

634324529 is a deficient number, since it is larger than the sum of its proper divisors (1).

634324529 is an equidigital number, since it uses as much as digits as its factorization.

634324529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 38.

The square root of 634324529 is about 25185.8001461141. The cubic root of 634324529 is about 859.2189271153.

The spelling of 634324529 in words is "six hundred thirty-four million, three hundred twenty-four thousand, five hundred twenty-nine".