28064760 has 64 divisors (see below), whose sum is σ = 84602880. Its totient is φ = 7447680.

The previous prime is 28064749. The next prime is 28064789. The reversal of 28064760 is 6746082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32089 + ... + 32951.

It is an arithmetic number, because the mean of its divisors is an integer number (1321920).

Almost surely, 2^28064760 is an apocalyptic number.

28064760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28064760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42301440).

28064760 is an abundant number, since it is smaller than the sum of its proper divisors (56538120).

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

28064760 is a wasteful number, since it uses less digits than its factorization.

28064760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 28064760 is about 5297.6183327982. The cubic root of 28064760 is about 303.8928234839.

The spelling of 28064760 in words is "twenty-eight million, sixty-four thousand, seven hundred sixty".