28849845 has 8 divisors (see below), whose sum is σ = 46159776. Its totient is φ = 15386576.

The previous prime is 28849829. The next prime is 28849883. The reversal of 28849845 is 54894882.

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 28849845 - 2⁴ = 28849829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28849794 and 28849803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961647 + ... + 961676.

It is an arithmetic number, because the mean of its divisors is an integer number (5769972).

Almost surely, 2^28849845 is an apocalyptic number.

It is an amenable number.

28849845 is a deficient number, since it is larger than the sum of its proper divisors (17309931).

28849845 is a wasteful number, since it uses less digits than its factorization.

28849845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923331.

The product of its digits is 737280, while the sum is 48.

The square root of 28849845 is about 5371.2051720261. The cubic root of 28849845 is about 306.7005075814.

The spelling of 28849845 in words is "twenty-eight million, eight hundred forty-nine thousand, eight hundred forty-five".