2667761 has 2 divisors, whose sum is σ = 2667762. Its totient is φ = 2667760.

The previous prime is 2667757. The next prime is 2667779. The reversal of 2667761 is 1677662.

2667761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 59536 = 1615^2 + 244^2 .

It is a cyclic number.

It is not a de Polignac number, because 2667761 - 2² = 2667757 is a prime.

It is not a weakly prime, because it can be changed into another prime (2667061) 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 as a sum of consecutive naturals, namely, 1333880 + 1333881.

It is an arithmetic number, because the mean of its divisors is an integer number (1333881).

2^2667761 is an apocalyptic number.

It is an amenable number.

2667761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2667761 is an equidigital number, since it uses as much as digits as its factorization.

2667761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 2667761 is about 1633.3281972708. The cubic root of 2667761 is about 138.6912214848.

Subtracting from 2667761 its reverse (1677662), we obtain a palindrome (990099).

The spelling of 2667761 in words is "two million, six hundred sixty-seven thousand, seven hundred sixty-one".