2666371 has 4 divisors (see below), whose sum is σ = 2710144. Its totient is φ = 2622600.

The previous prime is 2666309. The next prime is 2666381. The reversal of 2666371 is 1736662.

2666371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1736662 = 2 ⋅868331.

It is a cyclic number.

It is not a de Polignac number, because 2666371 - 2¹⁹ = 2142083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2666381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21795 + ... + 21916.

It is an arithmetic number, because the mean of its divisors is an integer number (677536).

2^2666371 is an apocalyptic number.

2666371 is a deficient number, since it is larger than the sum of its proper divisors (43773).

2666371 is an equidigital number, since it uses as much as digits as its factorization.

2666371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43772.

The product of its digits is 9072, while the sum is 31.

The square root of 2666371 is about 1632.9026302876. The cubic root of 2666371 is about 138.6671295853.

The spelling of 2666371 in words is "two million, six hundred sixty-six thousand, three hundred seventy-one".