28898563 has 8 divisors (see below), whose sum is σ = 31162320. Its totient is φ = 26709120.

The previous prime is 28898543. The next prime is 28898599. The reversal of 28898563 is 36589882.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28898563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28898503) 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 7 ways as a sum of consecutive naturals, for example, 17770 + ... + 19327.

It is an arithmetic number, because the mean of its divisors is an integer number (3895290).

Almost surely, 2^28898563 is an apocalyptic number.

28898563 is a deficient number, since it is larger than the sum of its proper divisors (2263757).

28898563 is a wasteful number, since it uses less digits than its factorization.

28898563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37157.

The product of its digits is 829440, while the sum is 49.

The square root of 28898563 is about 5375.7383678896. The cubic root of 28898563 is about 306.8730496127.

The spelling of 28898563 in words is "twenty-eight million, eight hundred ninety-eight thousand, five hundred sixty-three".