2861071 has 4 divisors (see below), whose sum is σ = 2869000. Its totient is φ = 2853144.

The previous prime is 2861063. The next prime is 2861081. The reversal of 2861071 is 1701682.

2861071 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.

It is a cyclic number.

It is not a de Polignac number, because 2861071 - 2³ = 2861063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861041) 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 in 3 ways as a sum of consecutive naturals, for example, 3396 + ... + 4153.

It is an arithmetic number, because the mean of its divisors is an integer number (717250).

2^2861071 is an apocalyptic number.

2861071 is a deficient number, since it is larger than the sum of its proper divisors (7929).

2861071 is an equidigital number, since it uses as much as digits as its factorization.

2861071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7928.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 2861071 is about 1691.4700706782. The cubic root of 2861071 is about 141.9633410626.

The spelling of 2861071 in words is "two million, eight hundred sixty-one thousand, seventy-one".