28608849 has 24 divisors (see below), whose sum is σ = 44328480. Its totient is φ = 18234216.

The previous prime is 28608809. The next prime is 28608863. The reversal of 28608849 is 94880682.

It is a happy number.

It is not a de Polignac number, because 28608849 - 2⁷ = 28608721 is a prime.

It is a super-2 number, since 2×28608849² = 1636932482209602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28608809) 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 23 ways as a sum of consecutive naturals, for example, 13282 + ... + 15284.

It is an arithmetic number, because the mean of its divisors is an integer number (1847020).

Almost surely, 2^28608849 is an apocalyptic number.

It is an amenable number.

28608849 is a deficient number, since it is larger than the sum of its proper divisors (15719631).

28608849 is a wasteful number, since it uses less digits than its factorization.

28608849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058 (or 2029 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 28608849 is about 5348.7240534542. The cubic root of 28608849 is about 305.8441151420.

The spelling of 28608849 in words is "twenty-eight million, six hundred eight thousand, eight hundred forty-nine".