28590855 has 16 divisors (see below), whose sum is σ = 48436704. Its totient is φ = 14351360.

The previous prime is 28590851. The next prime is 28590857. The reversal of 28590855 is 55809582.

It is not a de Polignac number, because 28590855 - 2² = 28590851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28590851) 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 15 ways as a sum of consecutive naturals, for example, 55806 + ... + 56315.

It is an arithmetic number, because the mean of its divisors is an integer number (3027294).

Almost surely, 2^28590855 is an apocalyptic number.

28590855 is a deficient number, since it is larger than the sum of its proper divisors (19845849).

28590855 is a wasteful number, since it uses less digits than its factorization.

28590855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112146.

The product of its (nonzero) digits is 144000, while the sum is 42.

The square root of 28590855 is about 5347.0417054667. The cubic root of 28590855 is about 305.7799798201.

The spelling of 28590855 in words is "twenty-eight million, five hundred ninety thousand, eight hundred fifty-five".