28227523 has 2 divisors, whose sum is σ = 28227524. Its totient is φ = 28227522.

The previous prime is 28227503. The next prime is 28227649. The reversal of 28227523 is 32572282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28227523 - 2⁹ = 28227011 is a prime.

It is not a weakly prime, because it can be changed into another prime (28227503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14113761 + 14113762.

It is an arithmetic number, because the mean of its divisors is an integer number (14113762).

Almost surely, 2^28227523 is an apocalyptic number.

28227523 is a deficient number, since it is larger than the sum of its proper divisors (1).

28227523 is an equidigital number, since it uses as much as digits as its factorization.

28227523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 28227523 is about 5312.9580273140. The cubic root of 28227523 is about 304.4791720389.

The spelling of 28227523 in words is "twenty-eight million, two hundred twenty-seven thousand, five hundred twenty-three".