635384 has 8 divisors (see below), whose sum is σ = 1191360. Its totient is φ = 317688.

The previous prime is 635363. The next prime is 635387. The reversal of 635384 is 483536.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635387) 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 as a sum of consecutive naturals, namely, 39704 + ... + 39719.

It is an arithmetic number, because the mean of its divisors is an integer number (148920).

2⁶³⁵³⁸⁴ is an apocalyptic number.

It is an amenable number.

635384 is a deficient number, since it is larger than the sum of its proper divisors (555976).

635384 is a wasteful number, since it uses less digits than its factorization.

635384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79429 (or 79425 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 635384 is about 797.1097791396. The cubic root of 635384 is about 85.9697026863.

The spelling of 635384 in words is "six hundred thirty-five thousand, three hundred eighty-four".