28232227 has 16 divisors (see below), whose sum is σ = 30081024. Its totient is φ = 26460000.

The previous prime is 28232213. The next prime is 28232249. The reversal of 28232227 is 72223282.

It is a cyclic number.

It is not a de Polignac number, because 28232227 - 2¹¹ = 28230179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28232195 and 28232204.

It is not an unprimeable number, because it can be changed into a prime (28232207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222238 + ... + 222364.

It is an arithmetic number, because the mean of its divisors is an integer number (1880064).

Almost surely, 2^28232227 is an apocalyptic number.

28232227 is a deficient number, since it is larger than the sum of its proper divisors (1848797).

28232227 is a wasteful number, since it uses less digits than its factorization.

28232227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330.

The product of its digits is 5376, while the sum is 28.

The square root of 28232227 is about 5313.4007001166. The cubic root of 28232227 is about 304.4960844979.

It can be divided in two parts, 2823 and 2227, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 28232227 in words is "twenty-eight million, two hundred thirty-two thousand, two hundred twenty-seven".