28504067 has 2 divisors, whose sum is σ = 28504068. Its totient is φ = 28504066.

The previous prime is 28504039. The next prime is 28504081. The reversal of 28504067 is 76040582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28504067 - 2¹² = 28499971 is a prime.

It is not a weakly prime, because it can be changed into another prime (28504037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14252033 + 14252034.

It is an arithmetic number, because the mean of its divisors is an integer number (14252034).

Almost surely, 2^28504067 is an apocalyptic number.

28504067 is a deficient number, since it is larger than the sum of its proper divisors (1).

28504067 is an equidigital number, since it uses as much as digits as its factorization.

28504067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 28504067 is about 5338.9200218771. The cubic root of 28504067 is about 305.4702662133.

The spelling of 28504067 in words is "twenty-eight million, five hundred four thousand, sixty-seven".