28847104 has 88 divisors (see below), whose sum is σ = 68091408. Its totient is φ = 12042240.

The previous prime is 28847101. The next prime is 28847123. The reversal of 28847104 is 40174882.

It is a tau number, because it is divible by the number of its divisors (88).

It is a self number, because there is not a number n which added to its sum of digits gives 28847104.

It is not an unprimeable number, because it can be changed into a prime (28847101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146334 + ... + 146530.

It is an arithmetic number, because the mean of its divisors is an integer number (773766).

Almost surely, 2^28847104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28847104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34045704).

28847104 is an abundant number, since it is smaller than the sum of its proper divisors (39244304).

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

28847104 is a wasteful number, since it uses less digits than its factorization.

28847104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 28847104 is about 5370.9500090766. The cubic root of 28847104 is about 306.6907941529.

The spelling of 28847104 in words is "twenty-eight million, eight hundred forty-seven thousand, one hundred four".