2831086 has 8 divisors (see below), whose sum is σ = 4305024. Its totient is φ = 1396080.

The previous prime is 2831069. The next prime is 2831089. The reversal of 2831086 is 6801382.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2831089) 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 3 ways as a sum of consecutive naturals, for example, 9550 + ... + 9841.

It is an arithmetic number, because the mean of its divisors is an integer number (538128).

2^2831086 is an apocalyptic number.

2831086 is a deficient number, since it is larger than the sum of its proper divisors (1473938).

2831086 is a wasteful number, since it uses less digits than its factorization.

2831086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19466.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2831086 is about 1682.5831331616. The cubic root of 2831086 is about 141.4656569461.

Adding to 2831086 its product of nonzero digits (2304), we get a triangular number (2833390 = T₂₃₈₀).

It can be divided in two parts, 283 and 1086, that added together give a square (1369 = 37²).

The spelling of 2831086 in words is "two million, eight hundred thirty-one thousand, eighty-six".