6857755 has 4 divisors (see below), whose sum is σ = 8229312. Its totient is φ = 5486200.

The previous prime is 6857743. The next prime is 6857759. The reversal of 6857755 is 5577586.

6857755 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6857755 - 2¹¹ = 6855707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6857759) 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, 685771 + ... + 685780.

It is an arithmetic number, because the mean of its divisors is an integer number (2057328).

Almost surely, 2^6857755 is an apocalyptic number.

6857755 is a deficient number, since it is larger than the sum of its proper divisors (1371557).

6857755 is a wasteful number, since it uses less digits than its factorization.

6857755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371556.

The product of its digits is 294000, while the sum is 43.

The square root of 6857755 is about 2618.7315631809. The cubic root of 6857755 is about 189.9885034595.

The spelling of 6857755 in words is "six million, eight hundred fifty-seven thousand, seven hundred fifty-five".