28084523 has 2 divisors, whose sum is σ = 28084524. Its totient is φ = 28084522.

The previous prime is 28084477. The next prime is 28084559. The reversal of 28084523 is 32548082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28084523 - 2¹⁰ = 28083499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28084523.

It is not a weakly prime, because it can be changed into another prime (28084423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14042261 + 14042262.

It is an arithmetic number, because the mean of its divisors is an integer number (14042262).

Almost surely, 2^28084523 is an apocalyptic number.

28084523 is a deficient number, since it is larger than the sum of its proper divisors (1).

28084523 is an equidigital number, since it uses as much as digits as its factorization.

28084523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 28084523 is about 5299.4832766978. The cubic root of 28084523 is about 303.9641397855.

The spelling of 28084523 in words is "twenty-eight million, eighty-four thousand, five hundred twenty-three".