9848090909 has 2 divisors, whose sum is σ = 9848090910. Its totient is φ = 9848090908.

The previous prime is 9848090869. The next prime is 9848090927. The reversal of 9848090909 is 9090908489.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5015755684 + 4832335225 = 70822^2 + 69515^2 .

It is a cyclic number.

It is not a de Polignac number, because 9848090909 - 2¹⁶ = 9848025373 is a prime.

It is a Sophie Germain prime.

9848090909 is a modest number, since divided by 90909 gives 9848 as remainder.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9848090209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4924045454 + 4924045455.

It is an arithmetic number, because the mean of its divisors is an integer number (4924045455).

Almost surely, 2^9848090909 is an apocalyptic number.

It is an amenable number.

9848090909 is a deficient number, since it is larger than the sum of its proper divisors (1).

9848090909 is an equidigital number, since it uses as much as digits as its factorization.

9848090909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 56.

The square root of 9848090909 is about 99237.5478788145. The cubic root of 9848090909 is about 2143.4697046184.

The spelling of 9848090909 in words is "nine billion, eight hundred forty-eight million, ninety thousand, nine hundred nine".