2886861 has 8 divisors (see below), whose sum is σ = 3858624. Its totient is φ = 1919840.

The previous prime is 2886859. The next prime is 2886899. The reversal of 2886861 is 1686882.

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

It is a cyclic number.

It is not a de Polignac number, because 2886861 - 2¹ = 2886859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2886161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640 + ... + 2486.

It is an arithmetic number, because the mean of its divisors is an integer number (482328).

2^2886861 is an apocalyptic number.

It is an amenable number.

2886861 is a deficient number, since it is larger than the sum of its proper divisors (971763).

2886861 is a wasteful number, since it uses less digits than its factorization.

2886861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371.

The product of its digits is 36864, while the sum is 39.

The square root of 2886861 is about 1699.0765138745. The cubic root of 2886861 is about 142.3886233442.

The spelling of 2886861 in words is "two million, eight hundred eighty-six thousand, eight hundred sixty-one".