97943597 has 2 divisors, whose sum is σ = 97943598. Its totient is φ = 97943596.

The previous prime is 97943581. The next prime is 97943617. The reversal of 97943597 is 79534979.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73599241 + 24344356 = 8579^2 + 4934^2 .

It is an emirp because it is prime and its reverse (79534979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97943597 - 2⁴ = 97943581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97943557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48971798 + 48971799.

It is an arithmetic number, because the mean of its divisors is an integer number (48971799).

Almost surely, 2^97943597 is an apocalyptic number.

It is an amenable number.

97943597 is a deficient number, since it is larger than the sum of its proper divisors (1).

97943597 is an equidigital number, since it uses as much as digits as its factorization.

97943597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2143260, while the sum is 53.

The square root of 97943597 is about 9896.6457448976. The cubic root of 97943597 is about 460.9551624227.

The spelling of 97943597 in words is "ninety-seven million, nine hundred forty-three thousand, five hundred ninety-seven".