634064 has 20 divisors (see below), whose sum is σ = 1282656. Its totient is φ = 303072.

The previous prime is 634061. The next prime is 634079. The reversal of 634064 is 460436.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494 + ... + 1229.

2⁶³⁴⁰⁶⁴ is an apocalyptic number.

It is an amenable number.

634064 is an abundant number, since it is smaller than the sum of its proper divisors (648592).

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

634064 is a wasteful number, since it uses less digits than its factorization.

634064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 634064 is about 796.2813573103. The cubic root of 634064 is about 85.9101278556.

The spelling of 634064 in words is "six hundred thirty-four thousand, sixty-four".