6605855 has 4 divisors (see below), whose sum is σ = 7927032. Its totient is φ = 5284680.

The previous prime is 6605849. The next prime is 6605857. The reversal of 6605855 is 5585066.

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

It is not a de Polignac number, because 6605855 - 2⁶ = 6605791 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605857) 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, 660581 + ... + 660590.

It is an arithmetic number, because the mean of its divisors is an integer number (1981758).

Almost surely, 2^6605855 is an apocalyptic number.

6605855 is a deficient number, since it is larger than the sum of its proper divisors (1321177).

6605855 is a wasteful number, since it uses less digits than its factorization.

6605855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321176.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 6605855 is about 2570.1857909498. The cubic root of 6605855 is about 187.6331972081.

The spelling of 6605855 in words is "six million, six hundred five thousand, eight hundred fifty-five".