6286728 has 64 divisors (see below), whose sum is σ = 18754560. Its totient is φ = 1717056.

The previous prime is 6286723. The next prime is 6286733. The reversal of 6286728 is 8276826.

It is an interprime number because it is at equal distance from previous prime (6286723) and next prime (6286733).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6286723) 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, 3051 + ... + 4677.

It is an arithmetic number, because the mean of its divisors is an integer number (293040).

Almost surely, 2^6286728 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 6286728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9377280).

6286728 is an abundant number, since it is smaller than the sum of its proper divisors (12467832).

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

6286728 is a wasteful number, since it uses less digits than its factorization.

6286728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666 (or 1662 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 6286728 is about 2507.3348400244. The cubic root of 6286728 is about 184.5616894057.

The spelling of 6286728 in words is "six million, two hundred eighty-six thousand, seven hundred twenty-eight".