2773823 has 8 divisors (see below), whose sum is σ = 3117408. Its totient is φ = 2448864.

The previous prime is 2773819. The next prime is 2773843. The reversal of 2773823 is 3283772.

It is a happy number.

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 2773823 - 2² = 2773819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2773823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2773843) 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 7 ways as a sum of consecutive naturals, for example, 4340 + ... + 4937.

It is an arithmetic number, because the mean of its divisors is an integer number (389676).

2^2773823 is an apocalyptic number.

2773823 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2773823 is a deficient number, since it is larger than the sum of its proper divisors (343585).

2773823 is a wasteful number, since it uses less digits than its factorization.

2773823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9313.

The product of its digits is 14112, while the sum is 32.

The square root of 2773823 is about 1665.4798107452. The cubic root of 2773823 is about 140.5053674237.

The spelling of 2773823 in words is "two million, seven hundred seventy-three thousand, eight hundred twenty-three".