28583249 has 4 divisors (see below), whose sum is σ = 28604400. Its totient is φ = 28562100.

The previous prime is 28583207. The next prime is 28583287. The reversal of 28583249 is 94238582.

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 28583249 - 2¹² = 28579153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28553249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8399 + ... + 11300.

It is an arithmetic number, because the mean of its divisors is an integer number (7151100).

Almost surely, 2^28583249 is an apocalyptic number.

It is an amenable number.

28583249 is a deficient number, since it is larger than the sum of its proper divisors (21151).

28583249 is a wasteful number, since it uses less digits than its factorization.

28583249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21150.

The product of its digits is 138240, while the sum is 41.

The square root of 28583249 is about 5346.3304237580. The cubic root of 28583249 is about 305.7528619556.

The spelling of 28583249 in words is "twenty-eight million, five hundred eighty-three thousand, two hundred forty-nine".