2666923 has 12 divisors (see below), whose sum is σ = 3188352. Its totient is φ = 2222640.

The previous prime is 2666891. The next prime is 2666929. The reversal of 2666923 is 3296662.

2666923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2666923 - 2⁵ = 2666891 is a prime.

It is a super-2 number, since 2×2666923² = 14224956575858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2666929) 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 11 ways as a sum of consecutive naturals, for example, 1078 + ... + 2548.

It is an arithmetic number, because the mean of its divisors is an integer number (265696).

2^2666923 is an apocalyptic number.

2666923 is a deficient number, since it is larger than the sum of its proper divisors (521429).

2666923 is a wasteful number, since it uses less digits than its factorization.

2666923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1515 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 2666923 is about 1633.0716457033. The cubic root of 2666923 is about 138.6766980179.

The spelling of 2666923 in words is "two million, six hundred sixty-six thousand, nine hundred twenty-three".