2855684 has 12 divisors (see below), whose sum is σ = 5381964. Its totient is φ = 1317984.

The previous prime is 2855683. The next prime is 2855701. The reversal of 2855684 is 4865582.

It can be written as a sum of positive squares in 2 ways, for example, as 688900 + 2166784 = 830^2 + 1472^2 .

It is a super-2 number, since 2×2855684² = 16309862215712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2855683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27407 + ... + 27510.

It is an arithmetic number, because the mean of its divisors is an integer number (448497).

2^2855684 is an apocalyptic number.

It is an amenable number.

2855684 is a deficient number, since it is larger than the sum of its proper divisors (2526280).

2855684 is a wasteful number, since it uses less digits than its factorization.

2855684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54934 (or 54932 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 2855684 is about 1689.8769185950. The cubic root of 2855684 is about 141.8741859877.

The spelling of 2855684 in words is "two million, eight hundred fifty-five thousand, six hundred eighty-four".