28285067 has 4 divisors (see below), whose sum is σ = 28320840. Its totient is φ = 28249296.

The previous prime is 28285031. The next prime is 28285069. The reversal of 28285067 is 76058282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28285067 - 2⁶ = 28285003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28285067.

It is not an unprimeable number, because it can be changed into a prime (28285069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16673 + ... + 18290.

It is an arithmetic number, because the mean of its divisors is an integer number (7080210).

Almost surely, 2^28285067 is an apocalyptic number.

28285067 is a deficient number, since it is larger than the sum of its proper divisors (35773).

28285067 is an equidigital number, since it uses as much as digits as its factorization.

28285067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35772.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 28285067 is about 5318.3707091552. The cubic root of 28285067 is about 304.6859330903.

The spelling of 28285067 in words is "twenty-eight million, two hundred eighty-five thousand, sixty-seven".