2856087 has 32 divisors (see below), whose sum is σ = 4659200. Its totient is φ = 1718496.

The previous prime is 2856083. The next prime is 2856097. The reversal of 2856087 is 7806582.

It is not a de Polignac number, because 2856087 - 2² = 2856083 is a prime.

2856087 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27678 + ... + 27780.

It is an arithmetic number, because the mean of its divisors is an integer number (145600).

2^2856087 is an apocalyptic number.

2856087 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2856087 is a deficient number, since it is larger than the sum of its proper divisors (1803113).

2856087 is a wasteful number, since it uses less digits than its factorization.

2856087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 2856087 is about 1689.9961538418. The cubic root of 2856087 is about 141.8808595327.

The spelling of 2856087 in words is "two million, eight hundred fifty-six thousand, eighty-seven".