28333241 has 4 divisors (see below), whose sum is σ = 28357632. Its totient is φ = 28308852.

The previous prime is 28333229. The next prime is 28333243. The reversal of 28333241 is 14233382.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28333241 - 2⁶ = 28333177 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 28333241.

It is not an unprimeable number, because it can be changed into a prime (28333243) 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, 10361 + ... + 12806.

It is an arithmetic number, because the mean of its divisors is an integer number (7089408).

Almost surely, 2^28333241 is an apocalyptic number.

It is an amenable number.

28333241 is a deficient number, since it is larger than the sum of its proper divisors (24391).

28333241 is a wasteful number, since it uses less digits than its factorization.

28333241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24390.

The product of its digits is 3456, while the sum is 26.

The square root of 28333241 is about 5322.8978010103. The cubic root of 28333241 is about 304.8588112980.

The spelling of 28333241 in words is "twenty-eight million, three hundred thirty-three thousand, two hundred forty-one".