28847245 has 16 divisors (see below), whose sum is σ = 40066560. Its totient is φ = 19528704.

The previous prime is 28847243. The next prime is 28847279. The reversal of 28847245 is 54274882.

It is a cyclic number.

It is not a de Polignac number, because 28847245 - 2¹ = 28847243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28847198 and 28847207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28847243) 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, 2452 + ... + 7981.

It is an arithmetic number, because the mean of its divisors is an integer number (2504160).

Almost surely, 2^28847245 is an apocalyptic number.

It is an amenable number.

28847245 is a deficient number, since it is larger than the sum of its proper divisors (11219315).

28847245 is a wasteful number, since it uses less digits than its factorization.

28847245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10524.

The product of its digits is 143360, while the sum is 40.

The square root of 28847245 is about 5370.9631352300. The cubic root of 28847245 is about 306.6912938372.

It can be divided in two parts, 28847 and 245, that added together give a palindrome (29092).

The spelling of 28847245 in words is "twenty-eight million, eight hundred forty-seven thousand, two hundred forty-five".