28900175 has 12 divisors (see below), whose sum is σ = 36292320. Its totient is φ = 22825920.

The previous prime is 28900139. The next prime is 28900177. The reversal of 28900175 is 57100982.

It is not a de Polignac number, because 28900175 - 2⁶ = 28900111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28900177) 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, 5342 + ... + 9291.

It is an arithmetic number, because the mean of its divisors is an integer number (3024360).

Almost surely, 2^28900175 is an apocalyptic number.

28900175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28900175 is a deficient number, since it is larger than the sum of its proper divisors (7392145).

28900175 is a wasteful number, since it uses less digits than its factorization.

28900175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14722 (or 14717 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 28900175 is about 5375.8882986907. Note that the first 3 decimals coincide. The cubic root of 28900175 is about 306.8787554346.

The spelling of 28900175 in words is "twenty-eight million, nine hundred thousand, one hundred seventy-five".