28869104 has 40 divisors (see below), whose sum is σ = 62042160. Its totient is φ = 12902400.

The previous prime is 28869103. The next prime is 28869107. The reversal of 28869104 is 40196882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28869101) 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 7 ways as a sum of consecutive naturals, for example, 9392 + ... + 12080.

It is an arithmetic number, because the mean of its divisors is an integer number (1551054).

Almost surely, 2^28869104 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 28869104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31021080).

28869104 is an abundant number, since it is smaller than the sum of its proper divisors (33173056).

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

28869104 is a wasteful number, since it uses less digits than its factorization.

28869104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769 (or 2763 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 28869104 is about 5372.9976735524. The cubic root of 28869104 is about 306.7687393887.

The spelling of 28869104 in words is "twenty-eight million, eight hundred sixty-nine thousand, one hundred four".