9997354613 has 2 divisors, whose sum is σ = 9997354614. Its totient is φ = 9997354612.

The previous prime is 9997354607. The next prime is 9997354669. The reversal of 9997354613 is 3164537999.

It is an a-pointer prime, because the next prime (9997354669) can be obtained adding 9997354613 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6775429969 + 3221924644 = 82313^2 + 56762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9997354613 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9997354693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998677306 + 4998677307.

It is an arithmetic number, because the mean of its divisors is an integer number (4998677307).

Almost surely, 2^9997354613 is an apocalyptic number.

It is an amenable number.

9997354613 is a deficient number, since it is larger than the sum of its proper divisors (1).

9997354613 is an equidigital number, since it uses as much as digits as its factorization.

9997354613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 56.

The square root of 9997354613 is about 99986.7721901252. The cubic root of 9997354613 is about 2154.2446961599.

The spelling of 9997354613 in words is "nine billion, nine hundred ninety-seven million, three hundred fifty-four thousand, six hundred thirteen".