28230567 has 4 divisors (see below), whose sum is σ = 37640760. Its totient is φ = 18820376.

The previous prime is 28230563. The next prime is 28230569. The reversal of 28230567 is 76503282.

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 28230567 - 2² = 28230563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28230563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4705092 + ... + 4705097.

It is an arithmetic number, because the mean of its divisors is an integer number (9410190).

Almost surely, 2^28230567 is an apocalyptic number.

28230567 is a deficient number, since it is larger than the sum of its proper divisors (9410193).

28230567 is an equidigital number, since it uses as much as digits as its factorization.

28230567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9410192.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 28230567 is about 5313.2444890105. The cubic root of 28230567 is about 304.4901164552.

The spelling of 28230567 in words is "twenty-eight million, two hundred thirty thousand, five hundred sixty-seven".