636828612 has 48 divisors (see below), whose sum is σ = 1708664832. Its totient is φ = 180830880.

The previous prime is 636828611. The next prime is 636828641. The reversal of 636828612 is 216828636.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (636828611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9564 + ... + 36947.

It is an arithmetic number, because the mean of its divisors is an integer number (35597184).

Almost surely, 2^636828612 is an apocalyptic number.

It is an amenable number.

636828612 is an abundant number, since it is smaller than the sum of its proper divisors (1071836220).

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

636828612 is a wasteful number, since it uses less digits than its factorization.

636828612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46688 (or 46686 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 636828612 is about 25235.4633799342. The cubic root of 636828612 is about 860.3480707511.

It can be divided in two parts, 6368 and 28612, that added together give a triangular number (34980 = T₂₆₄).

The spelling of 636828612 in words is "six hundred thirty-six million, eight hundred twenty-eight thousand, six hundred twelve".