2772223 has 4 divisors (see below), whose sum is σ = 2783968. Its totient is φ = 2760480.

The previous prime is 2772199. The next prime is 2772227. The reversal of 2772223 is 3222772.

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 2772223 - 2⁵ = 2772191 is a prime.

It is a Duffinian number.

2772223 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772227) 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, 5511 + ... + 5992.

It is an arithmetic number, because the mean of its divisors is an integer number (695992).

2^2772223 is an apocalyptic number.

2772223 is a deficient number, since it is larger than the sum of its proper divisors (11745).

2772223 is a wasteful number, since it uses less digits than its factorization.

2772223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11744.

The product of its digits is 2352, while the sum is 25.

The square root of 2772223 is about 1664.9993993993. Note that the first 3 decimals coincide. The cubic root of 2772223 is about 140.4783467346.

Adding to 2772223 its reverse (3222772), we get a palindrome (5994995).

It can be divided in two parts, 277 and 2223, that added together give a square (2500 = 50²).

The spelling of 2772223 in words is "two million, seven hundred seventy-two thousand, two hundred twenty-three".