2371666 has 16 divisors (see below), whose sum is σ = 3941280. Its totient is φ = 1061280.

The previous prime is 2371661. The next prime is 2371669. The reversal of 2371666 is 6661732.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2371661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670 + ... + 2278.

It is an arithmetic number, because the mean of its divisors is an integer number (246330).

2^2371666 is an apocalyptic number.

2371666 is a deficient number, since it is larger than the sum of its proper divisors (1569614).

2371666 is a wasteful number, since it uses less digits than its factorization.

2371666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689.

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

The square root of 2371666 is about 1540.0214284223. The cubic root of 2371666 is about 133.3576219641.

The spelling of 2371666 in words is "two million, three hundred seventy-one thousand, six hundred sixty-six".