2870855 has 16 divisors (see below), whose sum is σ = 3840480. Its totient is φ = 2045568.

The previous prime is 2870839. The next prime is 2870863. The reversal of 2870855 is 5580782.

It is a cyclic number.

It is not a de Polignac number, because 2870855 - 2⁴ = 2870839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1124 + ... + 2646.

It is an arithmetic number, because the mean of its divisors is an integer number (240030).

2^2870855 is an apocalyptic number.

2870855 is a deficient number, since it is larger than the sum of its proper divisors (969625).

2870855 is a wasteful number, since it uses less digits than its factorization.

2870855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 2870855 is about 1694.3597610897. The cubic root of 2870855 is about 142.1249808873.

The spelling of 2870855 in words is "two million, eight hundred seventy thousand, eight hundred fifty-five".