28541375 has 8 divisors (see below), whose sum is σ = 35619792. Its totient is φ = 22833000.

The previous prime is 28541369. The next prime is 28541407. The reversal of 28541375 is 57314582.

It is a happy number.

It is not a de Polignac number, because 28541375 - 2¹² = 28537279 is a prime.

It is a super-2 number, since 2×28541375² = 1629220173781250, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 114041 + ... + 114290.

It is an arithmetic number, because the mean of its divisors is an integer number (4452474).

Almost surely, 2^28541375 is an apocalyptic number.

28541375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28541375 is a deficient number, since it is larger than the sum of its proper divisors (7078417).

28541375 is an equidigital number, since it uses as much as digits as its factorization.

28541375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228346 (or 228336 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 28541375 is about 5342.4128443991. The cubic root of 28541375 is about 305.6034813102.

The spelling of 28541375 in words is "twenty-eight million, five hundred forty-one thousand, three hundred seventy-five".