2878823 has 4 divisors (see below), whose sum is σ = 3030360. Its totient is φ = 2727288.

The previous prime is 2878819. The next prime is 2878847. The reversal of 2878823 is 3288782.

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 2878823 - 2² = 2878819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75740 + ... + 75777.

It is an arithmetic number, because the mean of its divisors is an integer number (757590).

2^2878823 is an apocalyptic number.

2878823 is a deficient number, since it is larger than the sum of its proper divisors (151537).

2878823 is a wasteful number, since it uses less digits than its factorization.

2878823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151536.

The product of its digits is 43008, while the sum is 38.

The square root of 2878823 is about 1696.7094624596. The cubic root of 2878823 is about 142.2563477636.

The spelling of 2878823 in words is "two million, eight hundred seventy-eight thousand, eight hundred twenty-three".