28604724 has 24 divisors (see below), whose sum is σ = 67044768. Its totient is φ = 9492000.

The previous prime is 28604699. The next prime is 28604729. The reversal of 28604724 is 42740682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28604729) 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 7 ways as a sum of consecutive naturals, for example, 2527 + ... + 7974.

It is an arithmetic number, because the mean of its divisors is an integer number (2793532).

Almost surely, 2^28604724 is an apocalyptic number.

It is an amenable number.

28604724 is an abundant number, since it is smaller than the sum of its proper divisors (38440044).

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

28604724 is a wasteful number, since it uses less digits than its factorization.

28604724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10735 (or 10733 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 28604724 is about 5348.3384335698. The cubic root of 28604724 is about 305.8294149396.

The spelling of 28604724 in words is "twenty-eight million, six hundred four thousand, seven hundred twenty-four".