2855605 has 8 divisors (see below), whose sum is σ = 3607200. Its totient is φ = 2164176.

The previous prime is 2855603. The next prime is 2855617. The reversal of 2855605 is 5065582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2855605 - 2¹ = 2855603 is a prime.

2855605 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14935 + ... + 15124.

It is an arithmetic number, because the mean of its divisors is an integer number (450900).

2^2855605 is an apocalyptic number.

It is an amenable number.

2855605 is a deficient number, since it is larger than the sum of its proper divisors (751595).

2855605 is a wasteful number, since it uses less digits than its factorization.

2855605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30083.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 2855605 is about 1689.8535439499. The cubic root of 2855605 is about 141.8728777005.

The spelling of 2855605 in words is "two million, eight hundred fifty-five thousand, six hundred five".