28359375 has 48 divisors (see below), whose sum is σ = 51952992. Its totient is φ = 13750000.

The previous prime is 28359347. The next prime is 28359431. The reversal of 28359375 is 57395382.

It is not a de Polignac number, because 28359375 - 2¹¹ = 28357327 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.

Its product of digits (226800) is a multiple of the sum of its prime factors (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2578120 + ... + 2578130.

It is an arithmetic number, because the mean of its divisors is an integer number (1082354).

Almost surely, 2^28359375 is an apocalyptic number.

28359375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28359375 is a deficient number, since it is larger than the sum of its proper divisors (23593617).

28359375 is an frugal number, since it uses more digits than its factorization.

28359375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 19 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 28359375 is about 5325.3521010352. The cubic root of 28359375 is about 304.9525143309.

The spelling of 28359375 in words is "twenty-eight million, three hundred fifty-nine thousand, three hundred seventy-five".