97980097 has 2 divisors, whose sum is σ = 97980098. Its totient is φ = 97980096.

The previous prime is 97980073. The next prime is 97980121. The reversal of 97980097 is 79008979.

It is a balanced prime because it is at equal distance from previous prime (97980073) and next prime (97980121).

It can be written as a sum of positive squares in only one way, i.e., 73685056 + 24295041 = 8584^2 + 4929^2 .

It is a cyclic number.

It is not a de Polignac number, because 97980097 - 2¹⁵ = 97947329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97980097.

It is not a weakly prime, because it can be changed into another prime (97980997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48990048 + 48990049.

It is an arithmetic number, because the mean of its divisors is an integer number (48990049).

Almost surely, 2^97980097 is an apocalyptic number.

It is an amenable number.

97980097 is a deficient number, since it is larger than the sum of its proper divisors (1).

97980097 is an equidigital number, since it uses as much as digits as its factorization.

97980097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 49.

The square root of 97980097 is about 9898.4896322621. The cubic root of 97980097 is about 461.0124156935.

The spelling of 97980097 in words is "ninety-seven million, nine hundred eighty thousand, ninety-seven".