28433393 has 8 divisors (see below), whose sum is σ = 29211168. Its totient is φ = 27666144.

The previous prime is 28433389. The next prime is 28433407. The reversal of 28433393 is 39333482.

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 28433393 - 2² = 28433389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28433303) 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, 3005 + ... + 8117.

It is an arithmetic number, because the mean of its divisors is an integer number (3651396).

Almost surely, 2^28433393 is an apocalyptic number.

It is an amenable number.

28433393 is a deficient number, since it is larger than the sum of its proper divisors (777775).

28433393 is an equidigital number, since it uses as much as digits as its factorization.

28433393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263.

The product of its digits is 46656, while the sum is 35.

The square root of 28433393 is about 5332.2971597614. The cubic root of 28433393 is about 305.2175926457.

The spelling of 28433393 in words is "twenty-eight million, four hundred thirty-three thousand, three hundred ninety-three".