9890563 has 4 divisors (see below), whose sum is σ = 10015840. Its totient is φ = 9765288.

The previous prime is 9890527. The next prime is 9890579. The reversal of 9890563 is 3650989.

9890563 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.

It is a cyclic number.

It is not a de Polignac number, because 9890563 - 2¹³ = 9882371 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9890263) 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, 62520 + ... + 62677.

It is an arithmetic number, because the mean of its divisors is an integer number (2503960).

Almost surely, 2^9890563 is an apocalyptic number.

9890563 is a deficient number, since it is larger than the sum of its proper divisors (125277).

9890563 is a wasteful number, since it uses less digits than its factorization.

9890563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125276.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 9890563 is about 3144.9265492218. The cubic root of 9890563 is about 214.6546682701.

The spelling of 9890563 in words is "nine million, eight hundred ninety thousand, five hundred sixty-three".