99998983 has 4 divisors (see below), whose sum is σ = 114284560. Its totient is φ = 85713408.

The previous prime is 99998971. The next prime is 99998999. The reversal of 99998983 is 38989999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38989999 = 2999 ⋅13001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99998983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99998933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7142778 + ... + 7142791.

It is an arithmetic number, because the mean of its divisors is an integer number (28571140).

Almost surely, 2^99998983 is an apocalyptic number.

99998983 is a deficient number, since it is larger than the sum of its proper divisors (14285577).

99998983 is a wasteful number, since it uses less digits than its factorization.

99998983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14285576.

The product of its digits is 11337408, while the sum is 64.

The square root of 99998983 is about 9999.9491498707. The cubic root of 99998983 is about 464.1573098573.

The spelling of 99998983 in words is "ninety-nine million, nine hundred ninety-eight thousand, nine hundred eighty-three".