8919563 has 4 divisors (see below), whose sum is σ = 8932560. Its totient is φ = 8906568.

The previous prime is 8919557. The next prime is 8919571. The reversal of 8919563 is 3659198.

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 8919563 - 2¹⁴ = 8903179 is a prime.

It is a super-2 number, since 2×8919563² = 159117208221938, which contains 22 as substring.

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 8919563.

It is not an unprimeable number, because it can be changed into a prime (8919503) 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, 5408 + ... + 6861.

It is an arithmetic number, because the mean of its divisors is an integer number (2233140).

Almost surely, 2^8919563 is an apocalyptic number.

8919563 is a deficient number, since it is larger than the sum of its proper divisors (12997).

8919563 is a wasteful number, since it uses less digits than its factorization.

8919563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12996.

The product of its digits is 58320, while the sum is 41.

The square root of 8919563 is about 2986.5637445064. The cubic root of 8919563 is about 207.3868391550.

The spelling of 8919563 in words is "eight million, nine hundred nineteen thousand, five hundred sixty-three".