28489245 has 16 divisors (see below), whose sum is σ = 45669312. Its totient is φ = 15165440.

The previous prime is 28489231. The next prime is 28489267. The reversal of 28489245 is 54298482.

It is not a de Polignac number, because 28489245 - 2¹¹ = 28487197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28489197 and 28489206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8134 + ... + 11096.

It is an arithmetic number, because the mean of its divisors is an integer number (2854332).

Almost surely, 2^28489245 is an apocalyptic number.

It is an amenable number.

28489245 is a deficient number, since it is larger than the sum of its proper divisors (17180067).

28489245 is a wasteful number, since it uses less digits than its factorization.

28489245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612.

The product of its digits is 184320, while the sum is 42.

The square root of 28489245 is about 5337.5317329267. The cubic root of 28489245 is about 305.4173092638.

The spelling of 28489245 in words is "twenty-eight million, four hundred eighty-nine thousand, two hundred forty-five".