2722559 has 4 divisors (see below), whose sum is σ = 3111504. Its totient is φ = 2333616.

The previous prime is 2722553. The next prime is 2722561. The reversal of 2722559 is 9552272.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2722559 - 2¹⁶ = 2657023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194462 + ... + 194475.

It is an arithmetic number, because the mean of its divisors is an integer number (777876).

2^2722559 is an apocalyptic number.

2722559 is a deficient number, since it is larger than the sum of its proper divisors (388945).

2722559 is an equidigital number, since it uses as much as digits as its factorization.

2722559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388944.

The product of its digits is 12600, while the sum is 32.

The square root of 2722559 is about 1650.0178786910. The cubic root of 2722559 is about 139.6344032526.

The spelling of 2722559 in words is "two million, seven hundred twenty-two thousand, five hundred fifty-nine".