28838175 has 12 divisors (see below), whose sum is σ = 47679240. Its totient is φ = 15380320.

The previous prime is 28838167. The next prime is 28838189. The reversal of 28838175 is 57183882.

It is a happy number.

It is not a de Polignac number, because 28838175 - 2³ = 28838167 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 192180 + ... + 192329.

It is an arithmetic number, because the mean of its divisors is an integer number (3973270).

Almost surely, 2^28838175 is an apocalyptic number.

28838175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28838175 is a deficient number, since it is larger than the sum of its proper divisors (18841065).

28838175 is a wasteful number, since it uses less digits than its factorization.

28838175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384522 (or 384517 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 28838175 is about 5370.1187137716. The cubic root of 28838175 is about 306.6591477100.

The spelling of 28838175 in words is "twenty-eight million, eight hundred thirty-eight thousand, one hundred seventy-five".