28283235 has 16 divisors (see below), whose sum is σ = 46357920. Its totient is φ = 14716160.

The previous prime is 28283231. The next prime is 28283263. The reversal of 28283235 is 53238282.

It is not a de Polignac number, because 28283235 - 2² = 28283231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28283196 and 28283205.

It is not an unprimeable number, because it can be changed into a prime (28283231) 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, 22380 + ... + 23609.

It is an arithmetic number, because the mean of its divisors is an integer number (2897370).

Almost surely, 2^28283235 is an apocalyptic number.

28283235 is a deficient number, since it is larger than the sum of its proper divisors (18074685).

28283235 is a wasteful number, since it uses less digits than its factorization.

28283235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46038.

The product of its digits is 23040, while the sum is 33.

The square root of 28283235 is about 5318.1984731674. The cubic root of 28283235 is about 304.6793548644.

The spelling of 28283235 in words is "twenty-eight million, two hundred eighty-three thousand, two hundred thirty-five".