634011 has 24 divisors (see below), whose sum is σ = 1039680. Its totient is φ = 341712.

The previous prime is 634003. The next prime is 634013. The reversal of 634011 is 110436.

It is not a de Polignac number, because 634011 - 2³ = 634003 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (634013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2680 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (43320).

2⁶³⁴⁰¹¹ is an apocalyptic number.

634011 is a deficient number, since it is larger than the sum of its proper divisors (405669).

634011 is a wasteful number, since it uses less digits than its factorization.

634011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 634011 is about 796.2480769208. The cubic root of 634011 is about 85.9077341100.

Adding to 634011 its reverse (110436), we get a palindrome (744447).

The spelling of 634011 in words is "six hundred thirty-four thousand, eleven".