634716404 has 18 divisors (see below), whose sum is σ = 1292101650. Its totient is φ = 272021232.

The previous prime is 634716391. The next prime is 634716427. The reversal of 634716404 is 404617436.

It can be written as a sum of positive squares in only one way, i.e., 561784804 + 72931600 = 23702^2 + 8540^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1618979 + ... + 1619370.

It is an arithmetic number, because the mean of its divisors is an integer number (71783425).

Almost surely, 2^634716404 is an apocalyptic number.

It is an amenable number.

634716404 is an abundant number, since it is smaller than the sum of its proper divisors (657385246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634716404 is a wasteful number, since it uses less digits than its factorization.

634716404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238367 (or 3238358 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 634716404 is about 25193.5786263087. The cubic root of 634716404 is about 859.3958276808.

The spelling of 634716404 in words is "six hundred thirty-four million, seven hundred sixteen thousand, four hundred four".