636483789 has 12 divisors (see below), whose sum is σ = 923988000. Its totient is φ = 422189064.

The previous prime is 636483773. The next prime is 636483797. The reversal of 636483789 is 987384636.

It is not a de Polignac number, because 636483789 - 2⁴ = 636483773 is a prime.

It is a super-2 number, since 2×636483789² = 810223227319593042, which contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636483739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175899 + ... + 179480.

It is an arithmetic number, because the mean of its divisors is an integer number (76999000).

Almost surely, 2^636483789 is an apocalyptic number.

It is an amenable number.

636483789 is a deficient number, since it is larger than the sum of its proper divisors (287504211).

636483789 is a wasteful number, since it uses less digits than its factorization.

636483789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355584 (or 355581 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 636483789 is about 25228.6303433222. The cubic root of 636483789 is about 860.1927587572.

The spelling of 636483789 in words is "six hundred thirty-six million, four hundred eighty-three thousand, seven hundred eighty-nine".