634772 has 12 divisors (see below), whose sum is σ = 1141140. Its totient is φ = 308736.

The previous prime is 634759. The next prime is 634793. The reversal of 634772 is 277436.

It can be written as a sum of positive squares in 2 ways, for example, as 583696 + 51076 = 764^2 + 226^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1997 + ... + 2292.

It is an arithmetic number, because the mean of its divisors is an integer number (95095).

2⁶³⁴⁷⁷² is an apocalyptic number.

It is an amenable number.

634772 is a deficient number, since it is larger than the sum of its proper divisors (506368).

634772 is a wasteful number, since it uses less digits than its factorization.

634772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4330 (or 4328 counting only the distinct ones).

The product of its digits is 7056, while the sum is 29.

The square root of 634772 is about 796.7257997580. The cubic root of 634772 is about 85.9420918979.

The spelling of 634772 in words is "six hundred thirty-four thousand, seven hundred seventy-two".