28495885 has 16 divisors (see below), whose sum is σ = 38174400. Its totient is φ = 20240640.

The previous prime is 28495867. The next prime is 28495889. The reversal of 28495885 is 58859482.

It is not a de Polignac number, because 28495885 - 2¹¹ = 28493837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28495889) 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, 3660 + ... + 8389.

It is an arithmetic number, because the mean of its divisors is an integer number (2385900).

Almost surely, 2^28495885 is an apocalyptic number.

It is an amenable number.

28495885 is a deficient number, since it is larger than the sum of its proper divisors (9678515).

28495885 is a wasteful number, since it uses less digits than its factorization.

28495885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12108.

The product of its digits is 921600, while the sum is 49.

The square root of 28495885 is about 5338.1537070414. The cubic root of 28495885 is about 305.4410353331.

It can be divided in two parts, 284 and 95885, that added together give a palindrome (96169).

The spelling of 28495885 in words is "twenty-eight million, four hundred ninety-five thousand, eight hundred eighty-five".