634334579 has 2 divisors, whose sum is σ = 634334580. Its totient is φ = 634334578.

The previous prime is 634334557. The next prime is 634334611. The reversal of 634334579 is 975433436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 634334579 - 2¹² = 634330483 is a prime.

It is not a weakly prime, because it can be changed into another prime (634334509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317167289 + 317167290.

It is an arithmetic number, because the mean of its divisors is an integer number (317167290).

Almost surely, 2^634334579 is an apocalyptic number.

634334579 is a deficient number, since it is larger than the sum of its proper divisors (1).

634334579 is an equidigital number, since it uses as much as digits as its factorization.

634334579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 44.

The square root of 634334579 is about 25185.9996625109. Note that the first 3 decimals coincide. The cubic root of 634334579 is about 859.2234648055.

The spelling of 634334579 in words is "six hundred thirty-four million, three hundred thirty-four thousand, five hundred seventy-nine".