99966673 has 2 divisors, whose sum is σ = 99966674. Its totient is φ = 99966672.

The previous prime is 99966631. The next prime is 99966703. The reversal of 99966673 is 37666999.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90307009 + 9659664 = 9503^2 + 3108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99966673 is a prime.

It is not a weakly prime, because it can be changed into another prime (99966773) 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, 49983336 + 49983337.

It is an arithmetic number, because the mean of its divisors is an integer number (49983337).

Almost surely, 2^99966673 is an apocalyptic number.

It is an amenable number.

99966673 is a deficient number, since it is larger than the sum of its proper divisors (1).

99966673 is an equidigital number, since it uses as much as digits as its factorization.

99966673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3306744, while the sum is 55.

The square root of 99966673 is about 9998.3335111407. Note that the first 3 decimals coincide. The cubic root of 99966673 is about 464.1073142217.

The spelling of 99966673 in words is "ninety-nine million, nine hundred sixty-six thousand, six hundred seventy-three".