28849355 has 4 divisors (see below), whose sum is σ = 34619232. Its totient is φ = 23079480.

The previous prime is 28849351. The next prime is 28849367. The reversal of 28849355 is 55394882.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28849355 - 2² = 28849351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28849351) 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 3 ways as a sum of consecutive naturals, for example, 2884931 + ... + 2884940.

It is an arithmetic number, because the mean of its divisors is an integer number (8654808).

Almost surely, 2^28849355 is an apocalyptic number.

28849355 is a deficient number, since it is larger than the sum of its proper divisors (5769877).

28849355 is an equidigital number, since it uses as much as digits as its factorization.

28849355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769876.

The product of its digits is 345600, while the sum is 44.

The square root of 28849355 is about 5371.1595582332. The cubic root of 28849355 is about 306.6987711873.

The spelling of 28849355 in words is "twenty-eight million, eight hundred forty-nine thousand, three hundred fifty-five".