2861836 has 12 divisors (see below), whose sum is σ = 5181120. Its totient is φ = 1381520.

The previous prime is 2861809. The next prime is 2861849. The reversal of 2861836 is 6381682.

2861836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12220 + ... + 12451.

It is an arithmetic number, because the mean of its divisors is an integer number (431760).

2^2861836 is an apocalyptic number.

It is an amenable number.

2861836 is a deficient number, since it is larger than the sum of its proper divisors (2319284).

2861836 is a wasteful number, since it uses less digits than its factorization.

2861836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24704 (or 24702 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 2861836 is about 1691.6961902186. The cubic root of 2861836 is about 141.9759927675.

The spelling of 2861836 in words is "two million, eight hundred sixty-one thousand, eight hundred thirty-six".