2722889 has 8 divisors (see below), whose sum is σ = 3001152. Its totient is φ = 2454480.

The previous prime is 2722883. The next prime is 2722891. The reversal of 2722889 is 9882272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2722889 - 2¹⁶ = 2657353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2722883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1877 + ... + 2994.

It is an arithmetic number, because the mean of its divisors is an integer number (375144).

2^2722889 is an apocalyptic number.

It is an amenable number.

2722889 is a deficient number, since it is larger than the sum of its proper divisors (278263).

2722889 is a wasteful number, since it uses less digits than its factorization.

2722889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4927.

The product of its digits is 32256, while the sum is 38.

The square root of 2722889 is about 1650.1178745774. The cubic root of 2722889 is about 139.6400446965.

The spelling of 2722889 in words is "two million, seven hundred twenty-two thousand, eight hundred eighty-nine".