2766641 has 4 divisors (see below), whose sum is σ = 2769984. Its totient is φ = 2763300.

The previous prime is 2766637. The next prime is 2766649. The reversal of 2766641 is 1466672.

2766641 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 a Blum integer, because the two primes are equal to 3 mod 4, 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 2766641 - 2² = 2766637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2766598 and 2766607.

It is not an unprimeable number, because it can be changed into a prime (2766649) 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, 596 + ... + 2426.

It is an arithmetic number, because the mean of its divisors is an integer number (692496).

2^2766641 is an apocalyptic number.

It is an amenable number.

2766641 is a deficient number, since it is larger than the sum of its proper divisors (3343).

2766641 is a wasteful number, since it uses less digits than its factorization.

2766641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342.

The product of its digits is 12096, while the sum is 32.

The square root of 2766641 is about 1663.3222778524. The cubic root of 2766641 is about 140.3839968178.

The spelling of 2766641 in words is "two million, seven hundred sixty-six thousand, six hundred forty-one".