668984203 has 4 divisors (see below), whose sum is σ = 669915360. Its totient is φ = 668053048.

The previous prime is 668984177. The next prime is 668984207. The reversal of 668984203 is 302489866.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 668984203 - 2⁹ = 668983691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668984207) 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, 464500 + ... + 465937.

It is an arithmetic number, because the mean of its divisors is an integer number (167478840).

Almost surely, 2^668984203 is an apocalyptic number.

668984203 is a deficient number, since it is larger than the sum of its proper divisors (931157).

668984203 is an equidigital number, since it uses as much as digits as its factorization.

668984203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931156.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 668984203 is about 25864.7289372999. The cubic root of 668984203 is about 874.5915712354.

The spelling of 668984203 in words is "six hundred sixty-eight million, nine hundred eighty-four thousand, two hundred three".