28506067 has 2 divisors, whose sum is σ = 28506068. Its totient is φ = 28506066.

The previous prime is 28506047. The next prime is 28506083. The reversal of 28506067 is 76060582.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28506067 is a prime.

It is not a weakly prime, because it can be changed into another prime (28506047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14253033 + 14253034.

It is an arithmetic number, because the mean of its divisors is an integer number (14253034).

Almost surely, 2^28506067 is an apocalyptic number.

28506067 is a deficient number, since it is larger than the sum of its proper divisors (1).

28506067 is an equidigital number, since it uses as much as digits as its factorization.

28506067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 28506067 is about 5339.1073223901. The cubic root of 28506067 is about 305.4774105299.

The spelling of 28506067 in words is "twenty-eight million, five hundred six thousand, sixty-seven".