28829175 has 24 divisors (see below), whose sum is σ = 50175360. Its totient is φ = 14565600.

The previous prime is 28829173. The next prime is 28829197. The reversal of 28829175 is 57192882.

It is not a de Polignac number, because 28829175 - 2¹ = 28829173 is a prime.

It is a super-2 number, since 2×28829175² = 1662242662361250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28829173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8691 + ... + 11540.

It is an arithmetic number, because the mean of its divisors is an integer number (2090640).

Almost surely, 2^28829175 is an apocalyptic number.

28829175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28829175 is a deficient number, since it is larger than the sum of its proper divisors (21346185).

28829175 is a wasteful number, since it uses less digits than its factorization.

28829175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20263 (or 20258 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 28829175 is about 5369.2806780797. The cubic root of 28829175 is about 306.6272430155.

The spelling of 28829175 in words is "twenty-eight million, eight hundred twenty-nine thousand, one hundred seventy-five".