2861087 has 8 divisors (see below), whose sum is σ = 2954880. Its totient is φ = 2768920.

The previous prime is 2861081. The next prime is 2861107. The reversal of 2861087 is 7801682.

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 2861087 - 2²⁰ = 1812511 is a prime.

It is an Ulam number.

It is a Duffinian number.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3848 + ... + 4530.

It is an arithmetic number, because the mean of its divisors is an integer number (369360).

2^2861087 is an apocalyptic number.

2861087 is a deficient number, since it is larger than the sum of its proper divisors (93793).

2861087 is an equidigital number, since it uses as much as digits as its factorization.

2861087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 2861087 is about 1691.4748002852. The cubic root of 2861087 is about 141.9636056965.

The spelling of 2861087 in words is "two million, eight hundred sixty-one thousand, eighty-seven".