28947585 has 8 divisors (see below), whose sum is σ = 46316160. Its totient is φ = 15438704.

The previous prime is 28947577. The next prime is 28947601. The reversal of 28947585 is 58574982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28947585 - 2³ = 28947577 is a prime.

It is a Curzon 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, 964905 + ... + 964934.

It is an arithmetic number, because the mean of its divisors is an integer number (5789520).

Almost surely, 2^28947585 is an apocalyptic number.

It is an amenable number.

28947585 is a deficient number, since it is larger than the sum of its proper divisors (17368575).

28947585 is a wasteful number, since it uses less digits than its factorization.

28947585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929847.

The product of its digits is 806400, while the sum is 48.

The square root of 28947585 is about 5380.2959955750. The cubic root of 28947585 is about 307.0464726798.

It can be divided in two parts, 289 and 47585, that added together give a palindrome (47874).

The spelling of 28947585 in words is "twenty-eight million, nine hundred forty-seven thousand, five hundred eighty-five".