99099947 has 2 divisors, whose sum is σ = 99099948. Its totient is φ = 99099946.

The previous prime is 99099943. The next prime is 99099961. The reversal of 99099947 is 74999099.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99099947 - 2² = 99099943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99099892 and 99099901.

It is not a weakly prime, because it can be changed into another prime (99099943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49549973 + 49549974.

It is an arithmetic number, because the mean of its divisors is an integer number (49549974).

Almost surely, 2^99099947 is an apocalyptic number.

99099947 is a deficient number, since it is larger than the sum of its proper divisors (1).

99099947 is an equidigital number, since it uses as much as digits as its factorization.

99099947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1653372, while the sum is 56.

The square root of 99099947 is about 9954.8956297894. The cubic root of 99099947 is about 462.7621257708.

The spelling of 99099947 in words is "ninety-nine million, ninety-nine thousand, nine hundred forty-seven".