2668761 has 16 divisors (see below), whose sum is σ = 3998400. Its totient is φ = 1759104.

The previous prime is 2668733. The next prime is 2668769. The reversal of 2668761 is 1678662.

It is a happy number.

2668761 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 2668761 - 2⁹ = 2668249 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2668769) 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 15 ways as a sum of consecutive naturals, for example, 2110 + ... + 3128.

It is an arithmetic number, because the mean of its divisors is an integer number (249900).

2^2668761 is an apocalyptic number.

It is an amenable number.

2668761 is a deficient number, since it is larger than the sum of its proper divisors (1329639).

2668761 is a wasteful number, since it uses less digits than its factorization.

2668761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125 (or 1119 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 2668761 is about 1633.6342920005. The cubic root of 2668761 is about 138.7085486111.

Subtracting from 2668761 its reverse (1678662), we obtain a palindrome (990099).

The spelling of 2668761 in words is "two million, six hundred sixty-eight thousand, seven hundred sixty-one".