97966289 has 2 divisors, whose sum is σ = 97966290. Its totient is φ = 97966288.

The previous prime is 97966277. The next prime is 97966331. The reversal of 97966289 is 98266979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75829264 + 22137025 = 8708^2 + 4705^2 .

It is a cyclic number.

It is not a de Polignac number, because 97966289 - 2¹⁶ = 97900753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97966889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48983144 + 48983145.

It is an arithmetic number, because the mean of its divisors is an integer number (48983145).

Almost surely, 2^97966289 is an apocalyptic number.

It is an amenable number.

97966289 is a deficient number, since it is larger than the sum of its proper divisors (1).

97966289 is an equidigital number, since it uses as much as digits as its factorization.

97966289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 56.

The square root of 97966289 is about 9897.7921275404. The cubic root of 97966289 is about 460.9907583751.

The spelling of 97966289 in words is "ninety-seven million, nine hundred sixty-six thousand, two hundred eighty-nine".