28219593 has 8 divisors (see below), whose sum is σ = 37816000. Its totient is φ = 18718128.

The previous prime is 28219577. The next prime is 28219601. The reversal of 28219593 is 39591282.

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

It is not a de Polignac number, because 28219593 - 2⁴ = 28219577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28209593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23038 + ... + 24231.

It is an arithmetic number, because the mean of its divisors is an integer number (4727000).

Almost surely, 2^28219593 is an apocalyptic number.

It is an amenable number.

28219593 is a deficient number, since it is larger than the sum of its proper divisors (9596407).

28219593 is a wasteful number, since it uses less digits than its factorization.

28219593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47471.

The product of its digits is 38880, while the sum is 39.

The square root of 28219593 is about 5312.2116862941. The cubic root of 28219593 is about 304.4506567730.

The spelling of 28219593 in words is "twenty-eight million, two hundred nineteen thousand, five hundred ninety-three".