28608453 has 6 divisors (see below), whose sum is σ = 41323334. Its totient is φ = 19072296.

The previous prime is 28608431. The next prime is 28608457. The reversal of 28608453 is 35480682.

28608453 is a `hidden beast` number, since 2 + 8 + 608 + 45 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27531009 + 1077444 = 5247^2 + 1038^2 .

It is not a de Polignac number, because 28608453 - 2⁵ = 28608421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28608457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1589350 + ... + 1589367.

Almost surely, 2^28608453 is an apocalyptic number.

It is an amenable number.

28608453 is a deficient number, since it is larger than the sum of its proper divisors (12714881).

28608453 is a wasteful number, since it uses less digits than its factorization.

28608453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178723 (or 3178720 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 28608453 is about 5348.6870351517. The cubic root of 28608453 is about 305.8427039839.

The spelling of 28608453 in words is "twenty-eight million, six hundred eight thousand, four hundred fifty-three".