2861086 has 4 divisors (see below), whose sum is σ = 4291632. Its totient is φ = 1430542.

The previous prime is 2861081. The next prime is 2861107. The reversal of 2861086 is 6801682.

2861086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6801682 = 2 ⋅3400841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861081) by changing a digit.

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 as a sum of consecutive naturals, namely, 715270 + ... + 715273.

It is an arithmetic number, because the mean of its divisors is an integer number (1072908).

2^2861086 is an apocalyptic number.

2861086 is a deficient number, since it is larger than the sum of its proper divisors (1430546).

2861086 is a wasteful number, since it uses less digits than its factorization.

2861086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430545.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2861086 is about 1691.4745046852. The cubic root of 2861086 is about 141.9635891569.

The spelling of 2861086 in words is "two million, eight hundred sixty-one thousand, eighty-six".