6857455 has 16 divisors (see below), whose sum is σ = 9199008. Its totient is φ = 4864000.

The previous prime is 6857453. The next prime is 6857467. The reversal of 6857455 is 5547586.

It is not a de Polignac number, because 6857455 - 2¹ = 6857453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6857453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735 + ... + 3775.

It is an arithmetic number, because the mean of its divisors is an integer number (574938).

Almost surely, 2^6857455 is an apocalyptic number.

6857455 is a deficient number, since it is larger than the sum of its proper divisors (2341553).

6857455 is a wasteful number, since it uses less digits than its factorization.

6857455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098.

The product of its digits is 168000, while the sum is 40.

The square root of 6857455 is about 2618.6742829149. The cubic root of 6857455 is about 189.9857330007.

The spelling of 6857455 in words is "six million, eight hundred fifty-seven thousand, four hundred fifty-five".