28204353 has 12 divisors (see below), whose sum is σ = 41298660. Its totient is φ = 18544896.

The previous prime is 28204349. The next prime is 28204357. The reversal of 28204353 is 35340282.

It is an interprime number because it is at equal distance from previous prime (28204349) and next prime (28204357).

It can be written as a sum of positive squares in 2 ways, for example, as 5049009 + 23155344 = 2247^2 + 4812^2 .

It is not a de Polignac number, because 28204353 - 2² = 28204349 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28204357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20808 + ... + 22121.

It is an arithmetic number, because the mean of its divisors is an integer number (3441555).

Almost surely, 2^28204353 is an apocalyptic number.

It is an amenable number.

28204353 is a deficient number, since it is larger than the sum of its proper divisors (13094307).

28204353 is a wasteful number, since it uses less digits than its factorization.

28204353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43008 (or 43005 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 28204353 is about 5310.7770617867. Note that the first 3 decimals coincide. The cubic root of 28204353 is about 304.3958406800.

The spelling of 28204353 in words is "twenty-eight million, two hundred four thousand, three hundred fifty-three".