632321728 has 14 divisors (see below), whose sum is σ = 1254763556. Its totient is φ = 316160832.

The previous prime is 632321687. The next prime is 632321731. The reversal of 632321728 is 827123236.

It is a junction number, because it is equal to n+sod(n) for n = 632321693 and 632321702.

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 as a sum of consecutive naturals, namely, 4939950 + ... + 4940077.

Almost surely, 2^632321728 is an apocalyptic number.

It is an amenable number.

632321728 is a deficient number, since it is larger than the sum of its proper divisors (622441828).

632321728 is an equidigital number, since it uses as much as digits as its factorization.

632321728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9880039 (or 9880029 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 632321728 is about 25146.0081921565. The cubic root of 632321728 is about 858.3136813255.

The spelling of 632321728 in words is "six hundred thirty-two million, three hundred twenty-one thousand, seven hundred twenty-eight".