28603484 has 48 divisors (see below), whose sum is σ = 62092800. Its totient is φ = 11226816.

The previous prime is 28603481. The next prime is 28603489. The reversal of 28603484 is 48430682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28603481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64937 + ... + 65375.

It is an arithmetic number, because the mean of its divisors is an integer number (1293600).

Almost surely, 2^28603484 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 28603484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31046400).

28603484 is an abundant number, since it is smaller than the sum of its proper divisors (33489316).

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

28603484 is a wasteful number, since it uses less digits than its factorization.

28603484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 28603484 is about 5348.2225084602. Note that the first 3 decimals coincide. The cubic root of 28603484 is about 305.8249956933.

The spelling of 28603484 in words is "twenty-eight million, six hundred three thousand, four hundred eighty-four".