2853855 has 12 divisors (see below), whose sum is σ = 4946760. Its totient is φ = 1522032.

The previous prime is 2853853. The next prime is 2853869. The reversal of 2853855 is 5583582.

It is not a de Polignac number, because 2853855 - 2¹ = 2853853 is a prime.

It is a super-2 number, since 2×2853855² = 16288976722050, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2853853) 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, 31665 + ... + 31754.

It is an arithmetic number, because the mean of its divisors is an integer number (412230).

2^2853855 is an apocalyptic number.

2853855 is a deficient number, since it is larger than the sum of its proper divisors (2092905).

2853855 is a wasteful number, since it uses less digits than its factorization.

2853855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63430 (or 63427 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 2853855 is about 1689.3356682436. The cubic root of 2853855 is about 141.8438904666.

It can be divided in two parts, 285385 and 5, that added together give a triangular number (285390 = T₇₅₅).

The spelling of 2853855 in words is "two million, eight hundred fifty-three thousand, eight hundred fifty-five".