28875175 has 12 divisors (see below), whose sum is σ = 40920496. Its totient is φ = 19800000.

The previous prime is 28875169. The next prime is 28875227. The reversal of 28875175 is 57157882.

It is not a de Polignac number, because 28875175 - 2⁹ = 28874663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82326 + ... + 82675.

Almost surely, 2^28875175 is an apocalyptic number.

28875175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28875175 is a deficient number, since it is larger than the sum of its proper divisors (12045321).

28875175 is a wasteful number, since it uses less digits than its factorization.

28875175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165018 (or 165013 counting only the distinct ones).

The product of its digits is 156800, while the sum is 43.

The square root of 28875175 is about 5373.5625985002. The cubic root of 28875175 is about 306.7902417589.

The spelling of 28875175 in words is "twenty-eight million, eight hundred seventy-five thousand, one hundred seventy-five".