28936806 has 16 divisors (see below), whose sum is σ = 60390144. Its totient is φ = 9226184.

The previous prime is 28936801. The next prime is 28936811. The reversal of 28936806 is 60863982.

It is an interprime number because it is at equal distance from previous prime (28936801) and next prime (28936811).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28936801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104706 + ... + 104981.

It is an arithmetic number, because the mean of its divisors is an integer number (3774384).

Almost surely, 2^28936806 is an apocalyptic number.

28936806 is an abundant number, since it is smaller than the sum of its proper divisors (31453338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28936806 is a wasteful number, since it uses less digits than its factorization.

28936806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209715.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 28936806 is about 5379.2941916203. The cubic root of 28936806 is about 307.0083570672.

The spelling of 28936806 in words is "twenty-eight million, nine hundred thirty-six thousand, eight hundred six".