6668371 has 4 divisors (see below), whose sum is σ = 6674472. Its totient is φ = 6662272.

The previous prime is 6668359. The next prime is 6668377. The reversal of 6668371 is 1738666.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6668371 - 2²¹ = 4571219 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 6668371.

It is not an unprimeable number, because it can be changed into a prime (6668377) 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, 910 + ... + 3763.

It is an arithmetic number, because the mean of its divisors is an integer number (1668618).

Almost surely, 2^6668371 is an apocalyptic number.

6668371 is a deficient number, since it is larger than the sum of its proper divisors (6101).

6668371 is a wasteful number, since it uses less digits than its factorization.

6668371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100.

The product of its digits is 36288, while the sum is 37.

The square root of 6668371 is about 2582.3189191113. The cubic root of 6668371 is about 188.2232428004.

The spelling of 6668371 in words is "six million, six hundred sixty-eight thousand, three hundred seventy-one".