28098563 has 8 divisors (see below), whose sum is σ = 28436832. Its totient is φ = 27762496.

The previous prime is 28098547. The next prime is 28098589. The reversal of 28098563 is 36589082.

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 28098563 - 2⁴ = 28098547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28098563.

It is not an unprimeable number, because it can be changed into a prime (28098523) 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, 43106 + ... + 43752.

It is an arithmetic number, because the mean of its divisors is an integer number (3554604).

Almost surely, 2^28098563 is an apocalyptic number.

28098563 is a deficient number, since it is larger than the sum of its proper divisors (338269).

28098563 is a wasteful number, since it uses less digits than its factorization.

28098563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 28098563 is about 5300.8077686330. The cubic root of 28098563 is about 304.0147838782.

The spelling of 28098563 in words is "twenty-eight million, ninety-eight thousand, five hundred sixty-three".