6857028 has 48 divisors (see below), whose sum is σ = 17928960. Its totient is φ = 2266272.

The previous prime is 6857023. The next prime is 6857033. The reversal of 6857028 is 8207586.

6857028 is a `hidden beast` number, since 68 + 570 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (6857023) and next prime (6857033).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6856983 and 6857001.

It is not an unprimeable number, because it can be changed into a prime (6857023) 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, 18501 + ... + 18867.

It is an arithmetic number, because the mean of its divisors is an integer number (373520).

Almost surely, 2^6857028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6857028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8964480).

6857028 is an abundant number, since it is smaller than the sum of its proper divisors (11071932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6857028 is a wasteful number, since it uses less digits than its factorization.

6857028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 6857028 is about 2618.5927518421. The cubic root of 6857028 is about 189.9817895751.

The spelling of 6857028 in words is "six million, eight hundred fifty-seven thousand, twenty-eight".