28125167 has 12 divisors (see below), whose sum is σ = 33046776. Its totient is φ = 23864400.

The previous prime is 28125127. The next prime is 28125169. The reversal of 28125167 is 76152182.

It is not a de Polignac number, because 28125167 - 2⁶ = 28125103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28125169) 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 11 ways as a sum of consecutive naturals, for example, 2108 + ... + 7790.

It is an arithmetic number, because the mean of its divisors is an integer number (2753898).

Almost surely, 2^28125167 is an apocalyptic number.

28125167 is a deficient number, since it is larger than the sum of its proper divisors (4921609).

28125167 is a wasteful number, since it uses less digits than its factorization.

28125167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798 (or 5791 counting only the distinct ones).

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

The square root of 28125167 is about 5303.3166037867. The cubic root of 28125167 is about 304.1107016902.

The spelling of 28125167 in words is "twenty-eight million, one hundred twenty-five thousand, one hundred sixty-seven".