28304827 has 2 divisors, whose sum is σ = 28304828. Its totient is φ = 28304826.

The previous prime is 28304821. The next prime is 28304833. The reversal of 28304827 is 72840382.

It is a balanced prime because it is at equal distance from previous prime (28304821) and next prime (28304833).

It is a cyclic number.

It is not a de Polignac number, because 28304827 - 2³ = 28304819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28304792 and 28304801.

It is not a weakly prime, because it can be changed into another prime (28304821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14152413 + 14152414.

It is an arithmetic number, because the mean of its divisors is an integer number (14152414).

Almost surely, 2^28304827 is an apocalyptic number.

28304827 is a deficient number, since it is larger than the sum of its proper divisors (1).

28304827 is an equidigital number, since it uses as much as digits as its factorization.

28304827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 28304827 is about 5320.2280966139. The cubic root of 28304827 is about 304.7568679595.

The spelling of 28304827 in words is "twenty-eight million, three hundred four thousand, eight hundred twenty-seven".