634004417 has 8 divisors (see below), whose sum is σ = 639583776. Its totient is φ = 628449952.

The previous prime is 634004347. The next prime is 634004419. The reversal of 634004417 is 714400436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 634004417 - 2¹² = 634000321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 634004417.

It is not an unprimeable number, because it can be changed into a prime (634004419) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 46898 + ... + 58884.

It is an arithmetic number, because the mean of its divisors is an integer number (79947972).

Almost surely, 2^634004417 is an apocalyptic number.

It is an amenable number.

634004417 is a deficient number, since it is larger than the sum of its proper divisors (5579359).

634004417 is a wasteful number, since it uses less digits than its factorization.

634004417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12447.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 634004417 is about 25179.4443346155. Note that the first 3 decimals coincide. The cubic root of 634004417 is about 859.0743677943.

The spelling of 634004417 in words is "six hundred thirty-four million, four thousand, four hundred seventeen".