28327235 has 4 divisors (see below), whose sum is σ = 33992688. Its totient is φ = 22661784.

The previous prime is 28327217. The next prime is 28327259. The reversal of 28327235 is 53272382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28327235 - 2⁸ = 28326979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2832719 + ... + 2832728.

It is an arithmetic number, because the mean of its divisors is an integer number (8498172).

Almost surely, 2^28327235 is an apocalyptic number.

28327235 is a deficient number, since it is larger than the sum of its proper divisors (5665453).

28327235 is an equidigital number, since it uses as much as digits as its factorization.

28327235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5665452.

The product of its digits is 20160, while the sum is 32.

The square root of 28327235 is about 5322.3336047264. Note that the first 3 decimals coincide. The cubic root of 28327235 is about 304.8372687406.

The spelling of 28327235 in words is "twenty-eight million, three hundred twenty-seven thousand, two hundred thirty-five".