636487352 has 16 divisors (see below), whose sum is σ = 1197955440. Its totient is φ = 317032576.

The previous prime is 636487351. The next prime is 636487363. The reversal of 636487352 is 253784636.

It is a super-2 number, since 2×636487352² = 810232298511943808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636487351) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 149153 + ... + 153360.

It is an arithmetic number, because the mean of its divisors is an integer number (74872215).

Almost surely, 2^636487352 is an apocalyptic number.

It is an amenable number.

636487352 is a deficient number, since it is larger than the sum of its proper divisors (561468088).

636487352 is a wasteful number, since it uses less digits than its factorization.

636487352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302782 (or 302778 counting only the distinct ones).

The product of its digits is 725760, while the sum is 44.

The square root of 636487352 is about 25228.7009574413. The cubic root of 636487352 is about 860.1943638576.

The spelling of 636487352 in words is "six hundred thirty-six million, four hundred eighty-seven thousand, three hundred fifty-two".