99663847 has 2 divisors, whose sum is σ = 99663848. Its totient is φ = 99663846.

The previous prime is 99663841. The next prime is 99663857. The reversal of 99663847 is 74836699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99663847 - 2¹¹ = 99661799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99663794 and 99663803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99663841) 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, 49831923 + 49831924.

It is an arithmetic number, because the mean of its divisors is an integer number (49831924).

Almost surely, 2^99663847 is an apocalyptic number.

99663847 is a deficient number, since it is larger than the sum of its proper divisors (1).

99663847 is an equidigital number, since it uses as much as digits as its factorization.

99663847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 52.

The square root of 99663847 is about 9983.1782013545. The cubic root of 99663847 is about 463.6382048288.

The spelling of 99663847 in words is "ninety-nine million, six hundred sixty-three thousand, eight hundred forty-seven".