28354585 has 12 divisors (see below), whose sum is σ = 39581028. Its totient is φ = 19442976.

The previous prime is 28354577. The next prime is 28354591. The reversal of 28354585 is 58545382.

It can be written as a sum of positive squares in 2 ways, for example, as 4618201 + 23736384 = 2149^2 + 4872^2 .

It is not a de Polignac number, because 28354585 - 2³ = 28354577 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 11 ways as a sum of consecutive naturals, for example, 57622 + ... + 58111.

It is an arithmetic number, because the mean of its divisors is an integer number (3298419).

Almost surely, 2^28354585 is an apocalyptic number.

It is an amenable number.

28354585 is a deficient number, since it is larger than the sum of its proper divisors (11226443).

28354585 is a wasteful number, since it uses less digits than its factorization.

28354585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115752 (or 115745 counting only the distinct ones).

The product of its digits is 192000, while the sum is 40.

The square root of 28354585 is about 5324.9023465224. The cubic root of 28354585 is about 304.9353441735.

The spelling of 28354585 in words is "twenty-eight million, three hundred fifty-four thousand, five hundred eighty-five".