635952 has 20 divisors (see below), whose sum is σ = 1643000. Its totient is φ = 211968.

The previous prime is 635939. The next prime is 635959. The reversal of 635952 is 259536.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635959) by changing a digit.

635952 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 in 3 ways as a sum of consecutive naturals, for example, 6577 + ... + 6672.

It is an arithmetic number, because the mean of its divisors is an integer number (82150).

2⁶³⁵⁹⁵² is an apocalyptic number.

It is an amenable number.

635952 is an abundant number, since it is smaller than the sum of its proper divisors (1007048).

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

635952 is a wasteful number, since it uses less digits than its factorization.

635952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13260 (or 13254 counting only the distinct ones).

The product of its digits is 8100, while the sum is 30.

The square root of 635952 is about 797.4659867355. The cubic root of 635952 is about 85.9953125262.

The spelling of 635952 in words is "six hundred thirty-five thousand, nine hundred fifty-two".