99583 has 6 divisors (see below), whose sum is σ = 109592. Its totient is φ = 90420.

The previous prime is 99581. The next prime is 99607. The reversal of 99583 is 38599.

It is not a de Polignac number, because 99583 - 2¹ = 99581 is a prime.

It is a Duffinian number.

99583 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99581) 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, 291 + ... + 532.

2⁹⁹⁵⁸³ is an apocalyptic number.

99583 is a deficient number, since it is larger than the sum of its proper divisors (10009).

99583 is a wasteful number, since it uses less digits than its factorization.

99583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 834 counting only the distinct ones).

The product of its digits is 9720, while the sum is 34.

The square root of 99583 is about 315.5677423312. The cubic root of 99583 is about 46.3512803629.

The spelling of 99583 in words is "ninety-nine thousand, five hundred eighty-three".