634672 has 10 divisors (see below), whose sum is σ = 1229708. Its totient is φ = 317328.

The previous prime is 634651. The next prime is 634679. The reversal of 634672 is 276436.

634672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 6⁷ + 3⁶ + 6⁷ + 4⁸ + 7³ + 2¹³ .

It is a self number, because there is not a number n which added to its sum of digits gives 634672.

It is not an unprimeable number, because it can be changed into a prime (634679) by changing a digit.

634672 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19818 + ... + 19849.

2⁶³⁴⁶⁷² is an apocalyptic number.

It is an amenable number.

634672 is a deficient number, since it is larger than the sum of its proper divisors (595036).

634672 is a wasteful number, since it uses less digits than its factorization.

634672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39675 (or 39669 counting only the distinct ones).

The product of its digits is 6048, while the sum is 28.

The square root of 634672 is about 796.6630404381. The cubic root of 634672 is about 85.9375786446.

The spelling of 634672 in words is "six hundred thirty-four thousand, six hundred seventy-two".