99659983 has 2 divisors, whose sum is σ = 99659984. Its totient is φ = 99659982.

The previous prime is 99659977. The next prime is 99660013. The reversal of 99659983 is 38995699.

It is a weak prime.

It is an emirp because it is prime and its reverse (38995699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99659983 - 2⁹ = 99659471 is a prime.

It is a super-2 number, since 2×99659983² = 19864224423120578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99659383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49829991 + 49829992.

It is an arithmetic number, because the mean of its divisors is an integer number (49829992).

Almost surely, 2^99659983 is an apocalyptic number.

99659983 is a deficient number, since it is larger than the sum of its proper divisors (1).

99659983 is an equidigital number, since it uses as much as digits as its factorization.

99659983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4723920, while the sum is 58.

The square root of 99659983 is about 9982.9846739339. The cubic root of 99659983 is about 463.6322129497.

The spelling of 99659983 in words is "ninety-nine million, six hundred fifty-nine thousand, nine hundred eighty-three".