635572 has 12 divisors (see below), whose sum is σ = 1271200. Its totient is φ = 272376.

The previous prime is 635567. The next prime is 635599. The reversal of 635572 is 275536.

635572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

635572 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 22699 = 635572 / (6 + 3 + 5 + 5 + 7 + 2).

It is a d-powerful number, because it can be written as 6⁴ + 3¹¹ + 5⁴ + 5⁸ + 7³ + 2¹⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 635572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11322 + ... + 11377.

2⁶³⁵⁵⁷² is an apocalyptic number.

It is an amenable number.

635572 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

635572 is a wasteful number, since it uses less digits than its factorization.

635572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22710 (or 22708 counting only the distinct ones).

The product of its digits is 6300, while the sum is 28.

The square root of 635572 is about 797.2276964582. The cubic root of 635572 is about 85.9781808718.

The spelling of 635572 in words is "six hundred thirty-five thousand, five hundred seventy-two".