99810047 has 2 divisors, whose sum is σ = 99810048. Its totient is φ = 99810046.

The previous prime is 99810023. The next prime is 99810121. The reversal of 99810047 is 74001899.

It is a weak prime.

It is an emirp because it is prime and its reverse (74001899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99810047 - 2¹⁴ = 99793663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99810647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49905023 + 49905024.

It is an arithmetic number, because the mean of its divisors is an integer number (49905024).

Almost surely, 2^99810047 is an apocalyptic number.

99810047 is a deficient number, since it is larger than the sum of its proper divisors (1).

99810047 is an equidigital number, since it uses as much as digits as its factorization.

99810047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 99810047 is about 9990.4978354434. The cubic root of 99810047 is about 463.8648025029.

The spelling of 99810047 in words is "ninety-nine million, eight hundred ten thousand, forty-seven".