28844605 has 8 divisors (see below), whose sum is σ = 35350272. Its totient is φ = 22584528.

The previous prime is 28844591. The next prime is 28844609. The reversal of 28844605 is 50644882.

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 28844605 - 2²¹ = 26747453 is a prime.

It is a super-2 number, since 2×28844605² = 1664022475212050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28844609) 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, 61137 + ... + 61606.

It is an arithmetic number, because the mean of its divisors is an integer number (4418784).

Almost surely, 2^28844605 is an apocalyptic number.

It is an amenable number.

28844605 is a deficient number, since it is larger than the sum of its proper divisors (6505667).

28844605 is a wasteful number, since it uses less digits than its factorization.

28844605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122795.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 28844605 is about 5370.7173636303. The cubic root of 28844605 is about 306.6819377766.

The spelling of 28844605 in words is "twenty-eight million, eight hundred forty-four thousand, six hundred five".