635902 has 16 divisors (see below), whose sum is σ = 1030320. Its totient is φ = 293248.

The previous prime is 635893. The next prime is 635909. The reversal of 635902 is 209536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1848 + ... + 2164.

It is an arithmetic number, because the mean of its divisors is an integer number (64395).

2⁶³⁵⁹⁰² is an apocalyptic number.

635902 is a deficient number, since it is larger than the sum of its proper divisors (394418).

635902 is a wasteful number, since it uses less digits than its factorization.

635902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 635902 is about 797.4346368198. The cubic root of 635902 is about 85.9930587511.

The spelling of 635902 in words is "six hundred thirty-five thousand, nine hundred two".