99998793 has 20 divisors (see below), whose sum is σ = 149664900. Its totient is φ = 66539232.

The previous prime is 99998783. The next prime is 99998797. The reversal of 99998793 is 39789999.

It can be written as a sum of positive squares in 2 ways, for example, as 41062464 + 58936329 = 6408^2 + 7677^2 .

It is not a de Polignac number, because 99998793 - 2¹⁰ = 99997769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99998793.

It is not an unprimeable number, because it can be changed into a prime (99998797) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 63783 + ... + 65331.

It is an arithmetic number, because the mean of its divisors is an integer number (7483245).

Almost surely, 2^99998793 is an apocalyptic number.

It is an amenable number.

99998793 is a deficient number, since it is larger than the sum of its proper divisors (49666107).

99998793 is a wasteful number, since it uses less digits than its factorization.

99998793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358 (or 2349 counting only the distinct ones).

The product of its digits is 9920232, while the sum is 63.

The square root of 99998793 is about 9999.9396498179. The cubic root of 99998793 is about 464.1570158879.

The spelling of 99998793 in words is "ninety-nine million, nine hundred ninety-eight thousand, seven hundred ninety-three".