99964147 has 2 divisors, whose sum is σ = 99964148. Its totient is φ = 99964146.

The previous prime is 99964129. The next prime is 99964153. The reversal of 99964147 is 74146999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99964147 - 2⁷ = 99964019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99964147.

It is not a weakly prime, because it can be changed into another prime (99964127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49982073 + 49982074.

It is an arithmetic number, because the mean of its divisors is an integer number (49982074).

Almost surely, 2^99964147 is an apocalyptic number.

99964147 is a deficient number, since it is larger than the sum of its proper divisors (1).

99964147 is an equidigital number, since it uses as much as digits as its factorization.

99964147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 99964147 is about 9998.2071892915. The cubic root of 99964147 is about 464.1034051024.

The spelling of 99964147 in words is "ninety-nine million, nine hundred sixty-four thousand, one hundred forty-seven".