635982 has 8 divisors (see below), whose sum is σ = 1271976. Its totient is φ = 211992.

The previous prime is 635981. The next prime is 635983. The reversal of 635982 is 289536.

It is a happy number.

635982 is nontrivially palindromic in base 15.

635982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (635981) and next prime (635983).

It is a sphenic number, since it is the product of 3 distinct primes.

635982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52993 + ... + 53004.

It is an arithmetic number, because the mean of its divisors is an integer number (158997).

2⁶³⁵⁹⁸² is an apocalyptic number.

635982 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.

635982 is a wasteful number, since it uses less digits than its factorization.

635982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106002.

The product of its digits is 12960, while the sum is 33.

The square root of 635982 is about 797.4847960933. The cubic root of 635982 is about 85.9966647345.

It can be divided in two parts, 6359 and 82, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 635982 in words is "six hundred thirty-five thousand, nine hundred eighty-two".