28320098 has 8 divisors (see below), whose sum is σ = 42992208. Its totient is φ = 13989364.

The previous prime is 28320091. The next prime is 28320119. The reversal of 28320098 is 89002382.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (28320091) 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, 85136 + ... + 85467.

It is an arithmetic number, because the mean of its divisors is an integer number (5374026).

Almost surely, 2^28320098 is an apocalyptic number.

28320098 is a deficient number, since it is larger than the sum of its proper divisors (14672110).

28320098 is a wasteful number, since it uses less digits than its factorization.

28320098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170688.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 28320098 is about 5321.6630859159. The cubic root of 28320098 is about 304.8116655083.

The spelling of 28320098 in words is "twenty-eight million, three hundred twenty thousand, ninety-eight".