28219103 has 8 divisors (see below), whose sum is σ = 31021056. Its totient is φ = 25456600.

The previous prime is 28219073. The next prime is 28219153. The reversal of 28219103 is 30191282.

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 28219103 - 2¹² = 28215007 is a prime.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28219153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8351 + ... + 11232.

It is an arithmetic number, because the mean of its divisors is an integer number (3877632).

Almost surely, 2^28219103 is an apocalyptic number.

28219103 is a deficient number, since it is larger than the sum of its proper divisors (2801953).

28219103 is a wasteful number, since it uses less digits than its factorization.

28219103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19725.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 28219103 is about 5312.1655659439. The cubic root of 28219103 is about 304.4488946204.

The spelling of 28219103 in words is "twenty-eight million, two hundred nineteen thousand, one hundred three".