2858889 has 16 divisors (see below), whose sum is σ = 4261824. Its totient is φ = 1689600.

The previous prime is 2858833. The next prime is 2858893. The reversal of 2858889 is 9888582.

2858889 = T₂₂₂ + T₂₂₃ + ... + T₃₀₃.

It is not a de Polignac number, because 2858889 - 2⁸ = 2858633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2858819) 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 15 ways as a sum of consecutive naturals, for example, 297 + ... + 2409.

It is an arithmetic number, because the mean of its divisors is an integer number (266364).

2^2858889 is an apocalyptic number.

It is an amenable number.

2858889 is a deficient number, since it is larger than the sum of its proper divisors (1402935).

2858889 is a wasteful number, since it uses less digits than its factorization.

2858889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168.

The product of its digits is 368640, while the sum is 48.

The square root of 2858889 is about 1690.8249465867. The cubic root of 2858889 is about 141.9272423673.

The spelling of 2858889 in words is "two million, eight hundred fifty-eight thousand, eight hundred eighty-nine".