2776223 has 4 divisors (see below), whose sum is σ = 2922360. Its totient is φ = 2630088.

The previous prime is 2776217. The next prime is 2776259. The reversal of 2776223 is 3226772.

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 2776223 - 2¹² = 2772127 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 7 + 7⁷ + 6⁸ + 2¹² + 2¹⁸ + 3⁸ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2773223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73040 + ... + 73077.

It is an arithmetic number, because the mean of its divisors is an integer number (730590).

2^2776223 is an apocalyptic number.

2776223 is a deficient number, since it is larger than the sum of its proper divisors (146137).

2776223 is a wasteful number, since it uses less digits than its factorization.

2776223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146136.

The product of its digits is 7056, while the sum is 29.

The square root of 2776223 is about 1666.2001680470. The cubic root of 2776223 is about 140.5458789815.

The spelling of 2776223 in words is "two million, seven hundred seventy-six thousand, two hundred twenty-three".