668002892 has 12 divisors (see below), whose sum is σ = 1219831536. Its totient is φ = 319479600.

The previous prime is 668002891. The next prime is 668002943. The reversal of 668002892 is 298200866.

668002892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (668002891) 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, 3630359 + ... + 3630542.

It is an arithmetic number, because the mean of its divisors is an integer number (101652628).

Almost surely, 2^668002892 is an apocalyptic number.

It is an amenable number.

668002892 is a deficient number, since it is larger than the sum of its proper divisors (551828644).

668002892 is a wasteful number, since it uses less digits than its factorization.

668002892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7260928 (or 7260926 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 668002892 is about 25845.7519139993. The cubic root of 668002892 is about 874.1637253997.

The spelling of 668002892 in words is "six hundred sixty-eight million, two thousand, eight hundred ninety-two".