633872036 has 18 divisors (see below), whose sum is σ = 1290382758. Its totient is φ = 271659360.

The previous prime is 633872021. The next prime is 633872039. The reversal of 633872036 is 630278336.

It can be written as a sum of positive squares in only one way, i.e., 501760000 + 132112036 = 22400^2 + 11494^2 .

It is not an unprimeable number, because it can be changed into a prime (633872039) 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 5 ways as a sum of consecutive naturals, for example, 1616825 + ... + 1617216.

It is an arithmetic number, because the mean of its divisors is an integer number (71687931).

Almost surely, 2^633872036 is an apocalyptic number.

It is an amenable number.

633872036 is an abundant number, since it is smaller than the sum of its proper divisors (656510722).

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

633872036 is a wasteful number, since it uses less digits than its factorization.

633872036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234059 (or 3234050 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 633872036 is about 25176.8154459614. The cubic root of 633872036 is about 859.0145716598.

The spelling of 633872036 in words is "six hundred thirty-three million, eight hundred seventy-two thousand, thirty-six".