647323203 has 4 divisors (see below), whose sum is σ = 863097608. Its totient is φ = 431548800.

The previous prime is 647323153. The next prime is 647323213. The reversal of 647323203 is 302323746.

647323203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 647323203 - 2⁸ = 647322947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (647323213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107887198 + ... + 107887203.

It is an arithmetic number, because the mean of its divisors is an integer number (215774402).

Almost surely, 2^647323203 is an apocalyptic number.

647323203 is a deficient number, since it is larger than the sum of its proper divisors (215774405).

647323203 is a wasteful number, since it uses less digits than its factorization.

647323203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215774404.

The product of its (nonzero) digits is 18144, while the sum is 30.

The square root of 647323203 is about 25442.5471012633. The cubic root of 647323203 is about 865.0483686631.

Adding to 647323203 its reverse (302323746), we get a palindrome (949646949).

The spelling of 647323203 in words is "six hundred forty-seven million, three hundred twenty-three thousand, two hundred three".