28063189 has 16 divisors (see below), whose sum is σ = 35139456. Its totient is φ = 21772800.

The previous prime is 28063187. The next prime is 28063201. The reversal of 28063189 is 98136082.

It is not a de Polignac number, because 28063189 - 2¹ = 28063187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28063187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20989 + ... + 22285.

It is an arithmetic number, because the mean of its divisors is an integer number (2196216).

Almost surely, 2^28063189 is an apocalyptic number.

It is an amenable number.

28063189 is a deficient number, since it is larger than the sum of its proper divisors (7076267).

28063189 is a wasteful number, since it uses less digits than its factorization.

28063189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 28063189 is about 5297.4700565459. The cubic root of 28063189 is about 303.8871529736.

It can be divided in two parts, 2806 and 3189, that added together give a palindrome (5995).

The spelling of 28063189 in words is "twenty-eight million, sixty-three thousand, one hundred eighty-nine".