28105383 has 8 divisors (see below), whose sum is σ = 37744000. Its totient is φ = 18601848.

The previous prime is 28105373. The next prime is 28105391. The reversal of 28105383 is 38350182.

It is a happy number.

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

It is not a de Polignac number, because 28105383 - 2¹⁰ = 28104359 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 28105383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28105303) 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, 33283 + ... + 34116.

It is an arithmetic number, because the mean of its divisors is an integer number (4718000).

Almost surely, 2^28105383 is an apocalyptic number.

28105383 is a deficient number, since it is larger than the sum of its proper divisors (9638617).

28105383 is a wasteful number, since it uses less digits than its factorization.

28105383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67541.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 28105383 is about 5301.4510277848. The cubic root of 28105383 is about 304.0393784112.

The spelling of 28105383 in words is "twenty-eight million, one hundred five thousand, three hundred eighty-three".