28824612 has 48 divisors (see below), whose sum is σ = 70691712. Its totient is φ = 9123840.

The previous prime is 28824611. The next prime is 28824643. The reversal of 28824612 is 21642882.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28824611) 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, 49668 + ... + 50244.

It is an arithmetic number, because the mean of its divisors is an integer number (1472744).

Almost surely, 2^28824612 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 28824612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35345856).

28824612 is an abundant number, since it is smaller than the sum of its proper divisors (41867100).

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

28824612 is a wasteful number, since it uses less digits than its factorization.

28824612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788 (or 786 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 28824612 is about 5368.8557440110. The cubic root of 28824612 is about 306.6110647986.

Adding to 28824612 its product of digits (12288), we get a square (28836900 = 5370²).

The spelling of 28824612 in words is "twenty-eight million, eight hundred twenty-four thousand, six hundred twelve".