28487353 has 4 divisors (see below), whose sum is σ = 28769508. Its totient is φ = 28205200.

The previous prime is 28487351. The next prime is 28487377. The reversal of 28487353 is 35378482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21132409 + 7354944 = 4597^2 + 2712^2 .

It is a cyclic number.

It is not a de Polignac number, because 28487353 - 2¹ = 28487351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28487351) 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, 140926 + ... + 141127.

It is an arithmetic number, because the mean of its divisors is an integer number (7192377).

Almost surely, 2^28487353 is an apocalyptic number.

It is an amenable number.

28487353 is a deficient number, since it is larger than the sum of its proper divisors (282155).

28487353 is a wasteful number, since it uses less digits than its factorization.

28487353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282154.

The product of its digits is 161280, while the sum is 40.

The square root of 28487353 is about 5337.3544945038. The cubic root of 28487353 is about 305.4105480885.

It can be divided in two parts, 2848 and 7353, that added together give a palindrome (10201).

The spelling of 28487353 in words is "twenty-eight million, four hundred eighty-seven thousand, three hundred fifty-three".