28869175 has 12 divisors (see below), whose sum is σ = 35872456. Its totient is φ = 23047200.

The previous prime is 28869173. The next prime is 28869187. The reversal of 28869175 is 57196882.

It is not a de Polignac number, because 28869175 - 2¹ = 28869173 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 (28869173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15652 + ... + 17398.

Almost surely, 2^28869175 is an apocalyptic number.

28869175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28869175 is a deficient number, since it is larger than the sum of its proper divisors (7003281).

28869175 is a wasteful number, since it uses less digits than its factorization.

28869175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418 (or 2413 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 28869175 is about 5373.0042806609. The cubic root of 28869175 is about 306.7689908751.

Subtracting from 28869175 its sum of digits (46), we obtain a square (28869129 = 5373²).

The spelling of 28869175 in words is "twenty-eight million, eight hundred sixty-nine thousand, one hundred seventy-five".