28935560 has 32 divisors (see below), whose sum is σ = 66623040. Its totient is φ = 11304384.

The previous prime is 28935559. The next prime is 28935601. The reversal of 28935560 is 6553982.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6692 + ... + 10131.

It is an arithmetic number, because the mean of its divisors is an integer number (2081970).

Almost surely, 2^28935560 is an apocalyptic number.

28935560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28935560 is an abundant number, since it is smaller than the sum of its proper divisors (37687480).

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

28935560 is a wasteful number, since it uses less digits than its factorization.

28935560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16877 (or 16873 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 28935560 is about 5379.1783759232. The cubic root of 28935560 is about 307.0039504774.

The spelling of 28935560 in words is "twenty-eight million, nine hundred thirty-five thousand, five hundred sixty".