28698 has 8 divisors (see below), whose sum is σ = 57408. Its totient is φ = 9564.

The previous prime is 28697. The next prime is 28703. The reversal of 28698 is 89682.

It is a sphenic number, since it is the product of 3 distinct primes.

28698 is an admirable number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28698.

It is not an unprimeable number, because it can be changed into a prime (28697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2386 + ... + 2397.

It is an arithmetic number, because the mean of its divisors is an integer number (7176).

2²⁸⁶⁹⁸ is an apocalyptic number.

28698 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28704).

28698 is a wasteful number, since it uses less digits than its factorization.

28698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4788.

The product of its digits is 6912, while the sum is 33.

The square root of 28698 is about 169.4048405448. The cubic root of 28698 is about 30.6161476566.

The spelling of 28698 in words is "twenty-eight thousand, six hundred ninety-eight".