99992563 has 8 divisors (see below), whose sum is σ = 111743856. Its totient is φ = 88684800.

The previous prime is 99992539. The next prime is 99992617. The reversal of 99992563 is 36529999.

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

It is a cyclic number.

It is not a de Polignac number, because 99992563 - 2⁹ = 99992051 is a prime.

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 99992563.

It is not an unprimeable number, because it can be changed into a prime (99992533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110406 + ... + 111307.

It is an arithmetic number, because the mean of its divisors is an integer number (13967982).

Almost surely, 2^99992563 is an apocalyptic number.

99992563 is a deficient number, since it is larger than the sum of its proper divisors (11751293).

99992563 is a wasteful number, since it uses less digits than its factorization.

99992563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221765.

The product of its digits is 1180980, while the sum is 52.

The square root of 99992563 is about 9999.6281430861. The cubic root of 99992563 is about 464.1473765773.

The spelling of 99992563 in words is "ninety-nine million, nine hundred ninety-two thousand, five hundred sixty-three".