28015067 has 4 divisors (see below), whose sum is σ = 28027056. Its totient is φ = 28003080.

The previous prime is 28015051. The next prime is 28015069. The reversal of 28015067 is 76051082.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28015067 - 2⁴ = 28015051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28015069) 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 in 3 ways as a sum of consecutive naturals, for example, 1223 + ... + 7584.

It is an arithmetic number, because the mean of its divisors is an integer number (7006764).

Almost surely, 2^28015067 is an apocalyptic number.

28015067 is a deficient number, since it is larger than the sum of its proper divisors (11989).

28015067 is an equidigital number, since it uses as much as digits as its factorization.

28015067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11988.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 28015067 is about 5292.9261283339. The cubic root of 28015067 is about 303.7133544280.

The spelling of 28015067 in words is "twenty-eight million, fifteen thousand, sixty-seven".