2851986 has 8 divisors (see below), whose sum is σ = 5703984. Its totient is φ = 950660.

The previous prime is 2851973. The next prime is 2851991. The reversal of 2851986 is 6891582.

It is a sphenic number, since it is the product of 3 distinct primes.

2851986 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237660 + ... + 237671.

It is an arithmetic number, because the mean of its divisors is an integer number (712998).

2^2851986 is an apocalyptic number.

2851986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2851986 is a wasteful number, since it uses less digits than its factorization.

2851986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475336.

The product of its digits is 34560, while the sum is 39.

The square root of 2851986 is about 1688.7824016137. The cubic root of 2851986 is about 141.8129190116.

The spelling of 2851986 in words is "two million, eight hundred fifty-one thousand, nine hundred eighty-six".