97297771069 has 2 divisors, whose sum is σ = 97297771070. Its totient is φ = 97297771068.

The previous prime is 97297771001. The next prime is 97297771141. The reversal of 97297771069 is 96017779279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79770658969 + 17527112100 = 282437^2 + 132390^2 .

It is a cyclic number.

It is not a de Polignac number, because 97297771069 - 2¹⁷ = 97297639997 is a prime.

It is a super-2 number, since 2×97297771069² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97297771069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97297771369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48648885534 + 48648885535.

It is an arithmetic number, because the mean of its divisors is an integer number (48648885535).

Almost surely, 2^97297771069 is an apocalyptic number.

It is an amenable number.

97297771069 is a deficient number, since it is larger than the sum of its proper divisors (1).

97297771069 is an equidigital number, since it uses as much as digits as its factorization.

97297771069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21003948, while the sum is 64.

The spelling of 97297771069 in words is "ninety-seven billion, two hundred ninety-seven million, seven hundred seventy-one thousand, sixty-nine".