6855249 has 16 divisors (see below), whose sum is σ = 9472640. Its totient is φ = 4406400.

The previous prime is 6855229. The next prime is 6855253. The reversal of 6855249 is 9425586.

6855249 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6855249 - 2⁵ = 6855217 is a prime.

It is a d-powerful number, because it can be written as 6 + 8⁵ + 5⁷ + 5⁹ + 2¹³ + 4³ + 9⁷ .

It is a Duffinian number.

Its product of digits (86400) is a multiple of the sum of its prime divisors (600).

It is not an unprimeable number, because it can be changed into a prime (6855229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16557 + ... + 16965.

It is an arithmetic number, because the mean of its divisors is an integer number (592040).

Almost surely, 2^6855249 is an apocalyptic number.

It is an amenable number.

6855249 is a deficient number, since it is larger than the sum of its proper divisors (2617391).

6855249 is a wasteful number, since it uses less digits than its factorization.

6855249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its digits is 86400, while the sum is 39.

The square root of 6855249 is about 2618.2530435388. The cubic root of 6855249 is about 189.9653584120.

The spelling of 6855249 in words is "six million, eight hundred fifty-five thousand, two hundred forty-nine".