28717063 has 6 divisors (see below), whose sum is σ = 30505976. Its totient is φ = 27027552.

The previous prime is 28717021. The next prime is 28717079. The reversal of 28717063 is 36071782.

It is a de Polignac number, because none of the positive numbers 2^k-28717063 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 (28717463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49395 + ... + 49972.

Almost surely, 2^28717063 is an apocalyptic number.

28717063 is a deficient number, since it is larger than the sum of its proper divisors (1788913).

28717063 is an equidigital number, since it uses as much as digits as its factorization.

28717063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99401 (or 99384 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 28717063 is about 5358.8303761175. The cubic root of 28717063 is about 306.2292520721.

The spelling of 28717063 in words is "twenty-eight million, seven hundred seventeen thousand, sixty-three".