28817068 has 48 divisors (see below), whose sum is σ = 62254080. Its totient is φ = 11398464.

The previous prime is 28817003. The next prime is 28817069. The reversal of 28817068 is 86071882.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28817068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28817069) 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, 17905 + ... + 19447.

It is an arithmetic number, because the mean of its divisors is an integer number (1296960).

Almost surely, 2^28817068 is an apocalyptic number.

28817068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28817068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31127040).

28817068 is an abundant number, since it is smaller than the sum of its proper divisors (33437012).

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

28817068 is a wasteful number, since it uses less digits than its factorization.

28817068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606 (or 1604 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 28817068 is about 5368.1531274732. The cubic root of 28817068 is about 306.5843136355.

The spelling of 28817068 in words is "twenty-eight million, eight hundred seventeen thousand, sixty-eight".