2858859 has 6 divisors (see below), whose sum is σ = 4129476. Its totient is φ = 1905900.

The previous prime is 2858833. The next prime is 2858893. The reversal of 2858859 is 9588582.

It is not a de Polignac number, because 2858859 - 2⁵ = 2858827 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2858819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158817 + ... + 158834.

It is an arithmetic number, because the mean of its divisors is an integer number (688246).

2^2858859 is an apocalyptic number.

2858859 is a deficient number, since it is larger than the sum of its proper divisors (1270617).

2858859 is a wasteful number, since it uses less digits than its factorization.

2858859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317657 (or 317654 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 2858859 is about 1690.8160751542. The cubic root of 2858859 is about 141.9267459236.

The spelling of 2858859 in words is "two million, eight hundred fifty-eight thousand, eight hundred fifty-nine".