668828203 has 8 divisors (see below), whose sum is σ = 687357216. Its totient is φ = 650404800.

The previous prime is 668828143. The next prime is 668828219. The reversal of 668828203 is 302828866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-668828203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 668828203.

It is not an unprimeable number, because it can be changed into a prime (668828803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13476 + ... + 38977.

It is an arithmetic number, because the mean of its divisors is an integer number (85919652).

Almost surely, 2^668828203 is an apocalyptic number.

668828203 is a deficient number, since it is larger than the sum of its proper divisors (18529013).

668828203 is a wasteful number, since it uses less digits than its factorization.

668828203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52805.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 668828203 is about 25861.7130716432. The cubic root of 668828203 is about 874.5235841334.

The spelling of 668828203 in words is "six hundred sixty-eight million, eight hundred twenty-eight thousand, two hundred three".