9700000309 has 2 divisors, whose sum is σ = 9700000310. Its totient is φ = 9700000308.

The previous prime is 9700000273. The next prime is 9700000351. The reversal of 9700000309 is 9030000079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6628402225 + 3071598084 = 81415^2 + 55422^2 .

It is an emirp because it is prime and its reverse (9030000079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9700000309 - 2²¹ = 9697903157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9700000909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4850000154 + 4850000155.

It is an arithmetic number, because the mean of its divisors is an integer number (4850000155).

Almost surely, 2^9700000309 is an apocalyptic number.

It is an amenable number.

9700000309 is a deficient number, since it is larger than the sum of its proper divisors (1).

9700000309 is an equidigital number, since it uses as much as digits as its factorization.

9700000309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 9700000309 is about 98488.5795866709. The cubic root of 9700000309 is about 2132.6712581518.

The spelling of 9700000309 in words is "nine billion, seven hundred million, three hundred nine", and thus it is an aban number.