2855867 has 12 divisors (see below), whose sum is σ = 3351600. Its totient is φ = 2426256.

The previous prime is 2855857. The next prime is 2855869. The reversal of 2855867 is 7685582.

It is not a de Polignac number, because 2855867 - 2⁴ = 2855851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2855869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8009 + ... + 8357.

It is an arithmetic number, because the mean of its divisors is an integer number (279300).

2^2855867 is an apocalyptic number.

2855867 is a deficient number, since it is larger than the sum of its proper divisors (495733).

2855867 is a wasteful number, since it uses less digits than its factorization.

2855867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 523 counting only the distinct ones).

The product of its digits is 134400, while the sum is 41.

The square root of 2855867 is about 1689.9310636828. The cubic root of 2855867 is about 141.8772164842.

The spelling of 2855867 in words is "two million, eight hundred fifty-five thousand, eight hundred sixty-seven".