28459549 has 8 divisors (see below), whose sum is σ = 30767840. Its totient is φ = 26232336.

The previous prime is 28459531. The next prime is 28459553. The reversal of 28459549 is 94595482.

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 28459549 - 2⁵ = 28459517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28459499 and 28459508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28469549) 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 7 ways as a sum of consecutive naturals, for example, 19539 + ... + 20944.

It is an arithmetic number, because the mean of its divisors is an integer number (3845980).

Almost surely, 2^28459549 is an apocalyptic number.

It is an amenable number.

28459549 is a deficient number, since it is larger than the sum of its proper divisors (2308291).

28459549 is a wasteful number, since it uses less digits than its factorization.

28459549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40539.

The product of its digits is 518400, while the sum is 46.

The square root of 28459549 is about 5334.7491974787. The cubic root of 28459549 is about 305.3111542859.

The spelling of 28459549 in words is "twenty-eight million, four hundred fifty-nine thousand, five hundred forty-nine".