99361187 has 2 divisors, whose sum is σ = 99361188. Its totient is φ = 99361186.

The previous prime is 99361181. The next prime is 99361237. The reversal of 99361187 is 78116399.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99361187 - 2⁶ = 99361123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99361181) 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, 49680593 + 49680594.

It is an arithmetic number, because the mean of its divisors is an integer number (49680594).

Almost surely, 2^99361187 is an apocalyptic number.

99361187 is a deficient number, since it is larger than the sum of its proper divisors (1).

99361187 is an equidigital number, since it uses as much as digits as its factorization.

99361187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 44.

The square root of 99361187 is about 9968.0081761604. The cubic root of 99361187 is about 463.1684021542.

The spelling of 99361187 in words is "ninety-nine million, three hundred sixty-one thousand, one hundred eighty-seven".