639382203 has 12 divisors (see below), whose sum is σ = 926889808. Its totient is φ = 424714320.

The previous prime is 639382201. The next prime is 639382207. The reversal of 639382203 is 302283936.

639382203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 639382203 - 2¹ = 639382201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (639382201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125743 + ... + 130728.

Almost surely, 2^639382203 is an apocalyptic number.

639382203 is a deficient number, since it is larger than the sum of its proper divisors (287507605).

639382203 is a wasteful number, since it uses less digits than its factorization.

639382203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256754 (or 256751 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 639382203 is about 25286.0080479304. The cubic root of 639382203 is about 861.4964943890.

The spelling of 639382203 in words is "six hundred thirty-nine million, three hundred eighty-two thousand, two hundred three".