668003107 has 4 divisors (see below), whose sum is σ = 669928536. Its totient is φ = 666077680.

The previous prime is 668003059. The next prime is 668003111. The reversal of 668003107 is 701300866.

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 668003107 - 2¹⁵ = 667970339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668003137) 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, 962194 + ... + 962887.

It is an arithmetic number, because the mean of its divisors is an integer number (167482134).

Almost surely, 2^668003107 is an apocalyptic number.

668003107 is a deficient number, since it is larger than the sum of its proper divisors (1925429).

668003107 is a wasteful number, since it uses less digits than its factorization.

668003107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925428.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 668003107 is about 25845.7560732899. The cubic root of 668003107 is about 874.1638191843.

The spelling of 668003107 in words is "six hundred sixty-eight million, three thousand, one hundred seven".