636090648 has 16 divisors (see below), whose sum is σ = 1590226680. Its totient is φ = 212030208.

The previous prime is 636090619. The next prime is 636090659. The reversal of 636090648 is 846090636.

It is a super-3 number, since 3×636090648³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13251865 + ... + 13251912.

Almost surely, 2^636090648 is an apocalyptic number.

It is an amenable number.

636090648 is an abundant number, since it is smaller than the sum of its proper divisors (954136032).

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

636090648 is a wasteful number, since it uses less digits than its factorization.

636090648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26503786 (or 26503782 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 636090648 is about 25220.8375753067. The cubic root of 636090648 is about 860.0156153646.

The spelling of 636090648 in words is "six hundred thirty-six million, ninety thousand, six hundred forty-eight".