2773863 has 12 divisors (see below), whose sum is σ = 4052880. Its totient is φ = 1827936.

The previous prime is 2773843. The next prime is 2773871. The reversal of 2773863 is 3683772.

2773863 is a `hidden beast` number, since 277 + 386 + 3 = 666.

It is not a de Polignac number, because 2773863 - 2¹⁰ = 2772839 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 931 + ... + 2532.

It is an arithmetic number, because the mean of its divisors is an integer number (337740).

2^2773863 is an apocalyptic number.

2773863 is a deficient number, since it is larger than the sum of its proper divisors (1279017).

2773863 is a wasteful number, since it uses less digits than its factorization.

2773863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558 (or 3555 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 2773863 is about 1665.4918192534. The cubic root of 2773863 is about 140.5060428078.

Subtracting 2773863 from its reverse (3683772), we obtain a palindrome (909909).

The spelling of 2773863 in words is "two million, seven hundred seventy-three thousand, eight hundred sixty-three".