28563602 has 8 divisors (see below), whose sum is σ = 42981516. Its totient is φ = 14236432.

The previous prime is 28563583. The next prime is 28563629. The reversal of 28563602 is 20636582.

It can be written as a sum of positive squares in 2 ways, for example, as 27678121 + 885481 = 5261^2 + 941^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21893 + ... + 23160.

Almost surely, 2^28563602 is an apocalyptic number.

28563602 is a deficient number, since it is larger than the sum of its proper divisors (14417914).

28563602 is a wasteful number, since it uses less digits than its factorization.

28563602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45372.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 28563602 is about 5344.4926793850. The cubic root of 28563602 is about 305.6827917388.

The spelling of 28563602 in words is "twenty-eight million, five hundred sixty-three thousand, six hundred two".