99907 has 2 divisors, whose sum is σ = 99908. Its totient is φ = 99906.

The previous prime is 99901. The next prime is 99923. The reversal of 99907 is 70999.

It is a weak prime.

It is an emirp because it is prime and its reverse (70999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99907 - 2¹¹ = 97859 is a prime.

99907 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (99901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49953 + 49954.

It is an arithmetic number, because the mean of its divisors is an integer number (49954).

2⁹⁹⁹⁰⁷ is an apocalyptic number.

99907 is a deficient number, since it is larger than the sum of its proper divisors (1).

99907 is an equidigital number, since it uses as much as digits as its factorization.

99907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 34.

The square root of 99907 is about 316.0806859016. The cubic root of 99907 is about 46.4014949479.

The spelling of 99907 in words is "ninety-nine thousand, nine hundred seven".