99996647 has 2 divisors, whose sum is σ = 99996648. Its totient is φ = 99996646.

The previous prime is 99996619. The next prime is 99996653. The reversal of 99996647 is 74669999.

It is a strong prime.

It is an emirp because it is prime and its reverse (74669999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99996647 - 2⁶ = 99996583 is a prime.

It is a super-2 number, since 2×99996647² = 19998658822485218, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99996667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49998323 + 49998324.

It is an arithmetic number, because the mean of its divisors is an integer number (49998324).

Almost surely, 2^99996647 is an apocalyptic number.

99996647 is a deficient number, since it is larger than the sum of its proper divisors (1).

99996647 is an equidigital number, since it uses as much as digits as its factorization.

99996647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6613488, while the sum is 59.

The square root of 99996647 is about 9999.8323485947. The cubic root of 99996647 is about 464.1536955542.

The spelling of 99996647 in words is "ninety-nine million, nine hundred ninety-six thousand, six hundred forty-seven".