99993582 has 48 divisors (see below), whose sum is σ = 240637680. Its totient is φ = 30764448.

The previous prime is 99993527. The next prime is 99993583. The reversal of 99993582 is 28539999.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99993583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3648 + ... + 14604.

It is an arithmetic number, because the mean of its divisors is an integer number (5013285).

Almost surely, 2^99993582 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99993582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120318840).

99993582 is an abundant number, since it is smaller than the sum of its proper divisors (140644098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99993582 is a wasteful number, since it uses less digits than its factorization.

99993582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10994 (or 10975 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 54.

The square root of 99993582 is about 9999.6790948510. The cubic root of 99993582 is about 464.1489532431.

The spelling of 99993582 in words is "ninety-nine million, nine hundred ninety-three thousand, five hundred eighty-two".