28484383 has 4 divisors (see below), whose sum is σ = 28542888. Its totient is φ = 28425880.

The previous prime is 28484371. The next prime is 28484389. The reversal of 28484383 is 38348482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38348482 = 2 ⋅19174241.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28484383 is a prime.

It is a super-3 number, since 3×28484383³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28484389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28516 + ... + 29497.

It is an arithmetic number, because the mean of its divisors is an integer number (7135722).

Almost surely, 2^28484383 is an apocalyptic number.

28484383 is a deficient number, since it is larger than the sum of its proper divisors (58505).

28484383 is an equidigital number, since it uses as much as digits as its factorization.

28484383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58504.

The product of its digits is 147456, while the sum is 40.

The square root of 28484383 is about 5337.0762595264. The cubic root of 28484383 is about 305.3999340118.

The spelling of 28484383 in words is "twenty-eight million, four hundred eighty-four thousand, three hundred eighty-three".