635982966 has 12 divisors (see below), whose sum is σ = 1377963132. Its totient is φ = 211994316.

The previous prime is 635982947. The next prime is 635982967. The reversal of 635982966 is 669289536.

635982966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×635982966³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635982967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17666176 + ... + 17666211.

It is an arithmetic number, because the mean of its divisors is an integer number (114830261).

Almost surely, 2^635982966 is an apocalyptic number.

635982966 is an abundant number, since it is smaller than the sum of its proper divisors (741980166).

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

635982966 is a wasteful number, since it uses less digits than its factorization.

635982966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35332395 (or 35332392 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 635982966 is about 25218.7027025579. The cubic root of 635982966 is about 859.9670827495.

It can be divided in two parts, 63598 and 2966, that added together give a square (66564 = 258²).

The spelling of 635982966 in words is "six hundred thirty-five million, nine hundred eighty-two thousand, nine hundred sixty-six".