28028327 has 2 divisors, whose sum is σ = 28028328. Its totient is φ = 28028326.

The previous prime is 28028321. The next prime is 28028347. The reversal of 28028327 is 72382082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28028327 - 2¹⁴ = 28011943 is a prime.

It is a super-2 number, since 2×28028327² = 1571174228837858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28028293 and 28028302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28028321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14014163 + 14014164.

It is an arithmetic number, because the mean of its divisors is an integer number (14014164).

Almost surely, 2^28028327 is an apocalyptic number.

28028327 is a deficient number, since it is larger than the sum of its proper divisors (1).

28028327 is an equidigital number, since it uses as much as digits as its factorization.

28028327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 28028327 is about 5294.1785954008. The cubic root of 28028327 is about 303.7612644075.

The spelling of 28028327 in words is "twenty-eight million, twenty-eight thousand, three hundred twenty-seven".