636684096 has 84 divisors (see below), whose sum is σ = 1745093792. Its totient is φ = 204857856.

The previous prime is 636684089. The next prime is 636684131. The reversal of 636684096 is 690486636.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159501 + ... + 163443.

Almost surely, 2^636684096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 636684096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (872546896).

636684096 is an abundant number, since it is smaller than the sum of its proper divisors (1108409696).

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

636684096 is a wasteful number, since it uses less digits than its factorization.

636684096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016 (or 3977 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 48.

The square root of 636684096 is about 25232.5998660463. The cubic root of 636684096 is about 860.2829860141.

The spelling of 636684096 in words is "six hundred thirty-six million, six hundred eighty-four thousand, ninety-six".