2878111 has 4 divisors (see below), whose sum is σ = 2885400. Its totient is φ = 2870824.

The previous prime is 2878093. The next prime is 2878123. The reversal of 2878111 is 1118782.

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 2878111 - 2⁷ = 2877983 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 2878111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878181) 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, 3016 + ... + 3853.

It is an arithmetic number, because the mean of its divisors is an integer number (721350).

2^2878111 is an apocalyptic number.

2878111 is a deficient number, since it is larger than the sum of its proper divisors (7289).

2878111 is an equidigital number, since it uses as much as digits as its factorization.

2878111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7288.

The product of its digits is 896, while the sum is 28.

The square root of 2878111 is about 1696.4996315944. The cubic root of 2878111 is about 142.2446190269.

The spelling of 2878111 in words is "two million, eight hundred seventy-eight thousand, one hundred eleven".