2666941 has 4 divisors (see below), whose sum is σ = 2670300. Its totient is φ = 2663584.

The previous prime is 2666929. The next prime is 2666947. The reversal of 2666941 is 1496662.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1496662 = 2 ⋅748331.

It can be written as a sum of positive squares in 2 ways, for example, as 1276900 + 1390041 = 1130^2 + 1179^2 .

It is a cyclic number.

It is not a de Polignac number, because 2666941 - 2⁹ = 2666429 is a prime.

It is a super-2 number, since 2×2666941² = 14225148594962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2666897 and 2666906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666947) 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, 255 + ... + 2323.

It is an arithmetic number, because the mean of its divisors is an integer number (667575).

2^2666941 is an apocalyptic number.

It is an amenable number.

2666941 is a deficient number, since it is larger than the sum of its proper divisors (3359).

2666941 is a wasteful number, since it uses less digits than its factorization.

2666941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358.

The product of its digits is 15552, while the sum is 34.

The square root of 2666941 is about 1633.0771567810. The cubic root of 2666941 is about 138.6770100098.

The spelling of 2666941 in words is "two million, six hundred sixty-six thousand, nine hundred forty-one".