634002001 has 4 divisors (see below), whose sum is σ = 634423104. Its totient is φ = 633580900.

The previous prime is 634001989. The next prime is 634002011. The reversal of 634002001 is 100200436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 634002001 - 2⁷ = 634001873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634002011) 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 3 ways as a sum of consecutive naturals, for example, 208285 + ... + 211306.

It is an arithmetic number, because the mean of its divisors is an integer number (158605776).

Almost surely, 2^634002001 is an apocalyptic number.

It is an amenable number.

634002001 is a deficient number, since it is larger than the sum of its proper divisors (421103).

634002001 is a wasteful number, since it uses less digits than its factorization.

634002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421102.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 634002001 is about 25179.3963589281. The cubic root of 634002001 is about 859.0732765683.

Adding to 634002001 its reverse (100200436), we get a palindrome (734202437).

The spelling of 634002001 in words is "six hundred thirty-four million, two thousand, one".