28848511 has 4 divisors (see below), whose sum is σ = 28879312. Its totient is φ = 28817712.

The previous prime is 28848503. The next prime is 28848551. The reversal of 28848511 is 11584882.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11584882 = 2 ⋅5792441.

It is a cyclic number.

It is not a de Polignac number, because 28848511 - 2³ = 28848503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28848551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13950 + ... + 15883.

It is an arithmetic number, because the mean of its divisors is an integer number (7219828).

Almost surely, 2^28848511 is an apocalyptic number.

28848511 is a deficient number, since it is larger than the sum of its proper divisors (30801).

28848511 is an equidigital number, since it uses as much as digits as its factorization.

28848511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30800.

The product of its digits is 20480, while the sum is 37.

The square root of 28848511 is about 5371.0809898939. The cubic root of 28848511 is about 306.6957802910.

The spelling of 28848511 in words is "twenty-eight million, eight hundred forty-eight thousand, five hundred eleven".