6668073 has 6 divisors (see below), whose sum is σ = 9631674. Its totient is φ = 4445376.

The previous prime is 6668059. The next prime is 6668083. The reversal of 6668073 is 3708666.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6411024 + 257049 = 2532^2 + 507^2 .

It is not a de Polignac number, because 6668073 - 2¹⁰ = 6667049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6668033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370440 + ... + 370457.

It is an arithmetic number, because the mean of its divisors is an integer number (1605279).

Almost surely, 2^6668073 is an apocalyptic number.

It is an amenable number.

6668073 is a deficient number, since it is larger than the sum of its proper divisors (2963601).

6668073 is a wasteful number, since it uses less digits than its factorization.

6668073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740903 (or 740900 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 6668073 is about 2582.2612183898. The cubic root of 6668073 is about 188.2204389491.

The spelling of 6668073 in words is "six million, six hundred sixty-eight thousand, seventy-three".