28218795 has 16 divisors (see below), whose sum is σ = 49254912. Its totient is φ = 13681760.

The previous prime is 28218791. The next prime is 28218809. The reversal of 28218795 is 59781282.

It is not a de Polignac number, because 28218795 - 2² = 28218791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28218791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85347 + ... + 85676.

It is an arithmetic number, because the mean of its divisors is an integer number (3078432).

Almost surely, 2^28218795 is an apocalyptic number.

28218795 is a deficient number, since it is larger than the sum of its proper divisors (21036117).

28218795 is a wasteful number, since it uses less digits than its factorization.

28218795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171042.

The product of its digits is 80640, while the sum is 42.

The square root of 28218795 is about 5312.1365758045. The cubic root of 28218795 is about 304.4477869712.

It can be divided in two parts, 282187 and 95, that added together give a palindrome (282282).

The spelling of 28218795 in words is "twenty-eight million, two hundred eighteen thousand, seven hundred ninety-five".