9873563 has 4 divisors (see below), whose sum is σ = 11284080. Its totient is φ = 8463048.

The previous prime is 9873557. The next prime is 9873569. The reversal of 9873563 is 3653789.

9873563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3653789 = 109 ⋅33521.

It is an interprime number because it is at equal distance from previous prime (9873557) and next prime (9873569).

It is a cyclic number.

It is not a de Polignac number, because 9873563 - 2¹² = 9869467 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9873563.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9873569) 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, 705248 + ... + 705261.

It is an arithmetic number, because the mean of its divisors is an integer number (2821020).

Almost surely, 2^9873563 is an apocalyptic number.

9873563 is a deficient number, since it is larger than the sum of its proper divisors (1410517).

9873563 is a wasteful number, since it uses less digits than its factorization.

9873563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410516.

The product of its digits is 136080, while the sum is 41.

The square root of 9873563 is about 3142.2226210121. Note that the first 3 decimals coincide. The cubic root of 9873563 is about 214.5316142006.

The spelling of 9873563 in words is "nine million, eight hundred seventy-three thousand, five hundred sixty-three".