28833765 has 16 divisors (see below), whose sum is σ = 46208448. Its totient is φ = 15353216.

The previous prime is 28833757. The next prime is 28833769. The reversal of 28833765 is 56733882.

It is a cyclic number.

It is not a de Polignac number, because 28833765 - 2³ = 28833757 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 (28833769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11734 + ... + 13976.

It is an arithmetic number, because the mean of its divisors is an integer number (2888028).

Almost surely, 2^28833765 is an apocalyptic number.

It is an amenable number.

28833765 is a deficient number, since it is larger than the sum of its proper divisors (17374683).

28833765 is a wasteful number, since it uses less digits than its factorization.

28833765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108.

The product of its digits is 241920, while the sum is 42.

The square root of 28833765 is about 5369.7080926248. The cubic root of 28833765 is about 306.6435152392.

The spelling of 28833765 in words is "twenty-eight million, eight hundred thirty-three thousand, seven hundred sixty-five".