2000858 has 4 divisors (see below), whose sum is σ = 3001290. Its totient is φ = 1000428.

The previous prime is 2000813. The next prime is 2000863. The reversal of 2000858 is 8580002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1203409 + 797449 = 1097^2 + 893^2 .

2000858 is a modest number, since divided by 858 gives 2 as remainder.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 500213 + ... + 500216.

2^2000858 is an apocalyptic number.

2000858 is a deficient number, since it is larger than the sum of its proper divisors (1000432).

2000858 is a wasteful number, since it uses less digits than its factorization.

2000858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000431.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 2000858 is about 1414.5168786550. The cubic root of 2000858 is about 126.0101192847.

The spelling of 2000858 in words is "two million, eight hundred fifty-eight", and thus it is an aban number.