99047071 has 2 divisors, whose sum is σ = 99047072. Its totient is φ = 99047070.

The previous prime is 99047051. The next prime is 99047087. The reversal of 99047071 is 17074099.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99047071 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99047071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99047051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49523535 + 49523536.

It is an arithmetic number, because the mean of its divisors is an integer number (49523536).

Almost surely, 2^99047071 is an apocalyptic number.

99047071 is a deficient number, since it is larger than the sum of its proper divisors (1).

99047071 is an equidigital number, since it uses as much as digits as its factorization.

99047071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 99047071 is about 9952.2394967163. The cubic root of 99047071 is about 462.6798069802.

The spelling of 99047071 in words is "ninety-nine million, forty-seven thousand, seventy-one".