9700071091 has 2 divisors, whose sum is σ = 9700071092. Its totient is φ = 9700071090.

The previous prime is 9700071067. The next prime is 9700071113. The reversal of 9700071091 is 1901700079.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9700071091 is a prime.

It is not a weakly prime, because it can be changed into another prime (9700071991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4850035545 + 4850035546.

It is an arithmetic number, because the mean of its divisors is an integer number (4850035546).

Almost surely, 2^9700071091 is an apocalyptic number.

9700071091 is a deficient number, since it is larger than the sum of its proper divisors (1).

9700071091 is an equidigital number, since it uses as much as digits as its factorization.

9700071091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 9700071091 is about 98488.9389271709. The cubic root of 9700071091 is about 2132.6764455870.

The spelling of 9700071091 in words is "nine billion, seven hundred million, seventy-one thousand, ninety-one".