2878563 has 8 divisors (see below), whose sum is σ = 3941968. Its totient is φ = 1867104.

The previous prime is 2878543. The next prime is 2878573. The reversal of 2878563 is 3658782.

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

It is not a de Polignac number, because 2878563 - 2¹² = 2874467 is a prime.

It is a super-2 number, since 2×2878563² = 16572249889938, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2878543) 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, 12856 + ... + 13077.

It is an arithmetic number, because the mean of its divisors is an integer number (492746).

2^2878563 is an apocalyptic number.

2878563 is a deficient number, since it is larger than the sum of its proper divisors (1063405).

2878563 is a wasteful number, since it uses less digits than its factorization.

2878563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25973.

The product of its digits is 80640, while the sum is 39.

The square root of 2878563 is about 1696.6328418370. The cubic root of 2878563 is about 142.2520650221.

The spelling of 2878563 in words is "two million, eight hundred seventy-eight thousand, five hundred sixty-three".