97017797 has 2 divisors, whose sum is σ = 97017798. Its totient is φ = 97017796.

The previous prime is 97017721. The next prime is 97017799. The reversal of 97017797 is 79771079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70040161 + 26977636 = 8369^2 + 5194^2 .

It is a cyclic number.

It is not a de Polignac number, because 97017797 - 2²⁰ = 95969221 is a prime.

Together with 97017799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97017799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48508898 + 48508899.

It is an arithmetic number, because the mean of its divisors is an integer number (48508899).

Almost surely, 2^97017797 is an apocalyptic number.

It is an amenable number.

97017797 is a deficient number, since it is larger than the sum of its proper divisors (1).

97017797 is an equidigital number, since it uses as much as digits as its factorization.

97017797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194481, while the sum is 47.

The square root of 97017797 is about 9849.7612661424. The cubic root of 97017797 is about 459.4981878088.

The spelling of 97017797 in words is "ninety-seven million, seventeen thousand, seven hundred ninety-seven".