2855939 has 4 divisors (see below), whose sum is σ = 2861760. Its totient is φ = 2850120.

The previous prime is 2855927. The next prime is 2855953. The reversal of 2855939 is 9395582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2855939 - 2⁸ = 2855683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2855896 and 2855905.

It is not an unprimeable number, because it can be changed into a prime (2855989) 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, 2099 + ... + 3180.

It is an arithmetic number, because the mean of its divisors is an integer number (715440).

2^2855939 is an apocalyptic number.

2855939 is a deficient number, since it is larger than the sum of its proper divisors (5821).

2855939 is an equidigital number, since it uses as much as digits as its factorization.

2855939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820.

The product of its digits is 97200, while the sum is 41.

The square root of 2855939 is about 1689.9523661926. The cubic root of 2855939 is about 141.8784087752.

The spelling of 2855939 in words is "two million, eight hundred fifty-five thousand, nine hundred thirty-nine".