28208829 has 16 divisors (see below), whose sum is σ = 41313600. Its totient is φ = 16978560.

The previous prime is 28208827. The next prime is 28208857. The reversal of 28208829 is 92880282.

It is not a de Polignac number, because 28208829 - 2¹ = 28208827 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28208827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2049 + ... + 7785.

It is an arithmetic number, because the mean of its divisors is an integer number (2582100).

Almost surely, 2^28208829 is an apocalyptic number.

It is an amenable number.

28208829 is a deficient number, since it is larger than the sum of its proper divisors (13104771).

28208829 is a wasteful number, since it uses less digits than its factorization.

28208829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5900.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 28208829 is about 5311.1984523269. The cubic root of 28208829 is about 304.4119422573.

The spelling of 28208829 in words is "twenty-eight million, two hundred eight thousand, eight hundred twenty-nine".