28738175 has 6 divisors (see below), whose sum is σ = 35635368. Its totient is φ = 22990520.

The previous prime is 28738141. The next prime is 28738181. The reversal of 28738175 is 57183782.

It is not a de Polignac number, because 28738175 - 2¹⁰ = 28737151 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 5 ways as a sum of consecutive naturals, for example, 574739 + ... + 574788.

It is an arithmetic number, because the mean of its divisors is an integer number (5939228).

Almost surely, 2^28738175 is an apocalyptic number.

28738175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28738175 is a deficient number, since it is larger than the sum of its proper divisors (6897193).

28738175 is a wasteful number, since it uses less digits than its factorization.

28738175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149537 (or 1149532 counting only the distinct ones).

The product of its digits is 94080, while the sum is 41.

The square root of 28738175 is about 5360.7998470378. The cubic root of 28738175 is about 306.3042774823.

The spelling of 28738175 in words is "twenty-eight million, seven hundred thirty-eight thousand, one hundred seventy-five".