634712 has 32 divisors (see below), whose sum is σ = 1360800. Its totient is φ = 274944.

The previous prime is 634709. The next prime is 634717. The reversal of 634712 is 217436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634717) 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 7 ways as a sum of consecutive naturals, for example, 1589 + ... + 1947.

It is an arithmetic number, because the mean of its divisors is an integer number (42525).

2⁶³⁴⁷¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680400).

634712 is an abundant number, since it is smaller than the sum of its proper divisors (726088).

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

634712 is a wasteful number, since it uses less digits than its factorization.

634712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 391 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 634712 is about 796.6881447593. The cubic root of 634712 is about 85.9393840028.

The spelling of 634712 in words is "six hundred thirty-four thousand, seven hundred twelve".