99885967 has 2 divisors, whose sum is σ = 99885968. Its totient is φ = 99885966.

The previous prime is 99885959. The next prime is 99885979. The reversal of 99885967 is 76958899.

It is a weak prime.

It is an emirp because it is prime and its reverse (76958899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99885967 - 2³ = 99885959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99885917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49942983 + 49942984.

It is an arithmetic number, because the mean of its divisors is an integer number (49942984).

Almost surely, 2^99885967 is an apocalyptic number.

99885967 is a deficient number, since it is larger than the sum of its proper divisors (1).

99885967 is an equidigital number, since it uses as much as digits as its factorization.

99885967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 61.

The square root of 99885967 is about 9994.2967236319. The cubic root of 99885967 is about 463.9823848223.

The spelling of 99885967 in words is "ninety-nine million, eight hundred eighty-five thousand, nine hundred sixty-seven".