8333728 has 72 divisors (see below), whose sum is σ = 18815328. Its totient is φ = 3624192.

The previous prime is 8333707. The next prime is 8333729. The reversal of 8333728 is 8273338.

It is a happy number.

Its product of digits (24192) is a multiple of the sum of its prime factors (126).

It is a junction number, because it is equal to n+sod(n) for n = 8333693 and 8333702.

It is not an unprimeable number, because it can be changed into a prime (8333729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124351 + ... + 124417.

It is an arithmetic number, because the mean of its divisors is an integer number (261324).

Almost surely, 2^8333728 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 8333728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9407664).

8333728 is an abundant number, since it is smaller than the sum of its proper divisors (10481600).

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

8333728 is a wasteful number, since it uses less digits than its factorization.

8333728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 105 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 8333728 is about 2886.8197034107. The cubic root of 8333728 is about 202.7432670584.

The spelling of 8333728 in words is "eight million, three hundred thirty-three thousand, seven hundred twenty-eight".