2722591 has 2 divisors, whose sum is σ = 2722592. Its totient is φ = 2722590.

The previous prime is 2722561. The next prime is 2722619. The reversal of 2722591 is 1952272.

It is an a-pointer prime, because the next prime (2722619) can be obtained adding 2722591 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2722591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2722541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361295 + 1361296.

It is an arithmetic number, because the mean of its divisors is an integer number (1361296).

2^2722591 is an apocalyptic number.

2722591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2722591 is an equidigital number, since it uses as much as digits as its factorization.

2722591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 2722591 is about 1650.0275755271. The cubic root of 2722591 is about 139.6349503217.

The spelling of 2722591 in words is "two million, seven hundred twenty-two thousand, five hundred ninety-one".