28544411 has 12 divisors (see below), whose sum is σ = 35158968. Its totient is φ = 23026752.

The previous prime is 28544407. The next prime is 28544419. The reversal of 28544411 is 11444582.

It is not a de Polignac number, because 28544411 - 2² = 28544407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28544419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16301 + ... + 17966.

It is an arithmetic number, because the mean of its divisors is an integer number (2929914).

Almost surely, 2^28544411 is an apocalyptic number.

28544411 is a deficient number, since it is larger than the sum of its proper divisors (6614557).

28544411 is a wasteful number, since it uses less digits than its factorization.

28544411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34298 (or 34291 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 28544411 is about 5342.6969781188. The cubic root of 28544411 is about 305.6143167993.

Adding to 28544411 its reverse (11444582), we get a palindrome (39988993).

The spelling of 28544411 in words is "twenty-eight million, five hundred forty-four thousand, four hundred eleven".