634324673 has 2 divisors, whose sum is σ = 634324674. Its totient is φ = 634324672.

The previous prime is 634324661. The next prime is 634324687. The reversal of 634324673 is 376423436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 427166224 + 207158449 = 20668^2 + 14393^2 .

It is a cyclic number.

It is not a de Polignac number, because 634324673 - 2⁶ = 634324609 is a prime.

It is not a weakly prime, because it can be changed into another prime (634324073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317162336 + 317162337.

It is an arithmetic number, because the mean of its divisors is an integer number (317162337).

Almost surely, 2^634324673 is an apocalyptic number.

It is an amenable number.

634324673 is a deficient number, since it is larger than the sum of its proper divisors (1).

634324673 is an equidigital number, since it uses as much as digits as its factorization.

634324673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 38.

The square root of 634324673 is about 25185.8030048676. The cubic root of 634324673 is about 859.2189921333.

The spelling of 634324673 in words is "six hundred thirty-four million, three hundred twenty-four thousand, six hundred seventy-three".