2774863 has 8 divisors (see below), whose sum is σ = 3415328. Its totient is φ = 2195424.

The previous prime is 2774851. The next prime is 2774867. The reversal of 2774863 is 3684772.

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

It is not a de Polignac number, because 2774863 - 2¹³ = 2766671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774867) 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, 15156 + ... + 15337.

It is an arithmetic number, because the mean of its divisors is an integer number (426916).

2^2774863 is an apocalyptic number.

2774863 is a deficient number, since it is larger than the sum of its proper divisors (640465).

2774863 is a wasteful number, since it uses less digits than its factorization.

2774863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30513.

The product of its digits is 56448, while the sum is 37.

The square root of 2774863 is about 1665.7920038228. The cubic root of 2774863 is about 140.5229253000.

Subtracting 2774863 from its reverse (3684772), we obtain a palindrome (909909).

The spelling of 2774863 in words is "two million, seven hundred seventy-four thousand, eight hundred sixty-three".