28928441 has 8 divisors (see below), whose sum is σ = 30873600. Its totient is φ = 27010368.

The previous prime is 28928423. The next prime is 28928443. The reversal of 28928441 is 14482982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28928441 - 2¹⁰ = 28927417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28928395 and 28928404.

It is not an unprimeable number, because it can be changed into a prime (28928443) 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, 4541 + ... + 8858.

It is an arithmetic number, because the mean of its divisors is an integer number (3859200).

Almost surely, 2^28928441 is an apocalyptic number.

It is an amenable number.

28928441 is a deficient number, since it is larger than the sum of its proper divisors (1945159).

28928441 is a wasteful number, since it uses less digits than its factorization.

28928441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13543.

The product of its digits is 36864, while the sum is 38.

The square root of 28928441 is about 5378.5166170609. The cubic root of 28928441 is about 306.9787710743.

The spelling of 28928441 in words is "twenty-eight million, nine hundred twenty-eight thousand, four hundred forty-one".