2722691 has 2 divisors, whose sum is σ = 2722692. Its totient is φ = 2722690.

The previous prime is 2722661. The next prime is 2722729. The reversal of 2722691 is 1962272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2722691 - 2¹⁸ = 2460547 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2722661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361345 + 1361346.

It is an arithmetic number, because the mean of its divisors is an integer number (1361346).

2^2722691 is an apocalyptic number.

2722691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2722691 is an equidigital number, since it uses as much as digits as its factorization.

2722691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 29.

The square root of 2722691 is about 1650.0578777728. The cubic root of 2722691 is about 139.6366598849.

The spelling of 2722691 in words is "two million, seven hundred twenty-two thousand, six hundred ninety-one".