28098323 has 8 divisors (see below), whose sum is σ = 30754416. Its totient is φ = 25459200.

The previous prime is 28098313. The next prime is 28098349. The reversal of 28098323 is 32389082.

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

It is a cyclic number.

It is not a de Polignac number, because 28098323 - 2²⁰ = 27049747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28098313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638 + ... + 7523.

It is an arithmetic number, because the mean of its divisors is an integer number (3844302).

Almost surely, 2^28098323 is an apocalyptic number.

28098323 is a deficient number, since it is larger than the sum of its proper divisors (2656093).

28098323 is a wasteful number, since it uses less digits than its factorization.

28098323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8485.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 28098323 is about 5300.7851305255. The cubic root of 28098323 is about 304.0139183090.

The spelling of 28098323 in words is "twenty-eight million, ninety-eight thousand, three hundred twenty-three".