668832322 has 8 divisors (see below), whose sum is σ = 1003464396. Its totient is φ = 334344192.

The previous prime is 668832317. The next prime is 668832331. The reversal of 668832322 is 223238866.

It is a happy number.

668832322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 569251881 + 99580441 = 23859^2 + 9979^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23503 + ... + 43474.

Almost surely, 2^668832322 is an apocalyptic number.

668832322 is a deficient number, since it is larger than the sum of its proper divisors (334632074).

668832322 is a wasteful number, since it uses less digits than its factorization.

668832322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71972.

The product of its digits is 165888, while the sum is 40.

The square root of 668832322 is about 25861.7927066165. The cubic root of 668832322 is about 874.5253793903.

It can be divided in two parts, 66 and 8832322, that added together give a palindrome (8832388).

The spelling of 668832322 in words is "six hundred sixty-eight million, eight hundred thirty-two thousand, three hundred twenty-two".