28045383 has 4 divisors (see below), whose sum is σ = 37393848. Its totient is φ = 18696920.

The previous prime is 28045379. The next prime is 28045403. The reversal of 28045383 is 38354082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28045383 - 2² = 28045379 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28045333) 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, 4674228 + ... + 4674233.

It is an arithmetic number, because the mean of its divisors is an integer number (9348462).

Almost surely, 2^28045383 is an apocalyptic number.

28045383 is a deficient number, since it is larger than the sum of its proper divisors (9348465).

28045383 is an equidigital number, since it uses as much as digits as its factorization.

28045383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9348464.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 28045383 is about 5295.7891763174. The cubic root of 28045383 is about 303.8228675797.

The spelling of 28045383 in words is "twenty-eight million, forty-five thousand, three hundred eighty-three".