28118235 has 8 divisors (see below), whose sum is σ = 44989200. Its totient is φ = 14996384.

The previous prime is 28118227. The next prime is 28118239. The reversal of 28118235 is 53281182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28118235 - 2³ = 28118227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28118239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937260 + ... + 937289.

It is an arithmetic number, because the mean of its divisors is an integer number (5623650).

Almost surely, 2^28118235 is an apocalyptic number.

28118235 is a deficient number, since it is larger than the sum of its proper divisors (16870965).

28118235 is a wasteful number, since it uses less digits than its factorization.

28118235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874557.

The product of its digits is 3840, while the sum is 30.

The square root of 28118235 is about 5302.6630102242. The cubic root of 28118235 is about 304.0857149514.

The spelling of 28118235 in words is "twenty-eight million, one hundred eighteen thousand, two hundred thirty-five".