2868858 has 24 divisors (see below), whose sum is σ = 6447168. Its totient is φ = 956124.

The previous prime is 2868857. The next prime is 2868871. The reversal of 2868858 is 8588682.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2868851) 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 11 ways as a sum of consecutive naturals, for example, 2466 + ... + 3437.

It is an arithmetic number, because the mean of its divisors is an integer number (268632).

2^2868858 is an apocalyptic number.

2868858 is an abundant number, since it is smaller than the sum of its proper divisors (3578310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2868858 is an equidigital number, since it uses as much as digits as its factorization.

2868858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920 (or 5908 counting only the distinct ones).

The product of its digits is 245760, while the sum is 45.

The square root of 2868858 is about 1693.7703504313. The cubic root of 2868858 is about 142.0920186487.

It can be divided in two parts, 28 and 68858, that added together give a palindrome (68886).

The spelling of 2868858 in words is "two million, eight hundred sixty-eight thousand, eight hundred fifty-eight".