8293728 has 48 divisors (see below), whose sum is σ = 22921920. Its totient is φ = 2618496.

The previous prime is 8293717. The next prime is 8293751. The reversal of 8293728 is 8273928.

8293728 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450 + ... + 4097.

It is an arithmetic number, because the mean of its divisors is an integer number (477540).

Almost surely, 2^8293728 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 8293728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11460960).

8293728 is an abundant number, since it is smaller than the sum of its proper divisors (14628192).

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

8293728 is a wasteful number, since it uses less digits than its factorization.

8293728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579 (or 4571 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 8293728 is about 2879.8833309702. The cubic root of 8293728 is about 202.4183728316.

The spelling of 8293728 in words is "eight million, two hundred ninety-three thousand, seven hundred twenty-eight".