28854459 has 12 divisors (see below), whose sum is σ = 43023552. Its totient is φ = 18615600.

The previous prime is 28854401. The next prime is 28854473. The reversal of 28854459 is 95445882.

It is not a de Polignac number, because 28854459 - 2¹² = 28850363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28854479) 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, 51432 + ... + 51989.

It is an arithmetic number, because the mean of its divisors is an integer number (3585296).

Almost surely, 2^28854459 is an apocalyptic number.

28854459 is a deficient number, since it is larger than the sum of its proper divisors (14169093).

28854459 is a wasteful number, since it uses less digits than its factorization.

28854459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103458 (or 103455 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 28854459 is about 5371.6346673987. The cubic root of 28854459 is about 306.7168570708.

The spelling of 28854459 in words is "twenty-eight million, eight hundred fifty-four thousand, four hundred fifty-nine".