28860588 has 18 divisors (see below), whose sum is σ = 72953244. Its totient is φ = 9620184.

The previous prime is 28860583. The next prime is 28860589. The reversal of 28860588 is 88506882.

28860588 is a `hidden beast` number, since 2 + 8 + 8 + 60 + 588 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (28860583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 400806 + ... + 400877.

It is an arithmetic number, because the mean of its divisors is an integer number (4052958).

Almost surely, 2^28860588 is an apocalyptic number.

It is an amenable number.

28860588 is an abundant number, since it is smaller than the sum of its proper divisors (44092656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28860588 is a wasteful number, since it uses less digits than its factorization.

28860588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801693 (or 801688 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The square root of 28860588 is about 5372.2051338347. The cubic root of 28860588 is about 306.7385721956.

The spelling of 28860588 in words is "twenty-eight million, eight hundred sixty thousand, five hundred eighty-eight".