28112567 has 16 divisors (see below), whose sum is σ = 33349632. Its totient is φ = 23189760.

The previous prime is 28112551. The next prime is 28112569. The reversal of 28112567 is 76521182.

It is a cyclic number.

It is not a de Polignac number, because 28112567 - 2⁴ = 28112551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28112569) 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 15 ways as a sum of consecutive naturals, for example, 76418 + ... + 76784.

It is an arithmetic number, because the mean of its divisors is an integer number (2084352).

Almost surely, 2^28112567 is an apocalyptic number.

28112567 is a deficient number, since it is larger than the sum of its proper divisors (5237065).

28112567 is a wasteful number, since it uses less digits than its factorization.

28112567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758.

The product of its digits is 6720, while the sum is 32.

The square root of 28112567 is about 5302.1285348433. The cubic root of 28112567 is about 304.0652813117.

The spelling of 28112567 in words is "twenty-eight million, one hundred twelve thousand, five hundred sixty-seven".