28441393 has 8 divisors (see below), whose sum is σ = 28935360. Its totient is φ = 27950160.

The previous prime is 28441379. The next prime is 28441397. The reversal of 28441393 is 39314482.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28441393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28441397) 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, 35746 + ... + 36532.

It is an arithmetic number, because the mean of its divisors is an integer number (3616920).

Almost surely, 2^28441393 is an apocalyptic number.

It is an amenable number.

28441393 is a deficient number, since it is larger than the sum of its proper divisors (493967).

28441393 is an equidigital number, since it uses as much as digits as its factorization.

28441393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367.

The product of its digits is 20736, while the sum is 34.

The square root of 28441393 is about 5333.0472527440. The cubic root of 28441393 is about 305.2462152325.

The spelling of 28441393 in words is "twenty-eight million, four hundred forty-one thousand, three hundred ninety-three".