97983617 has 2 divisors, whose sum is σ = 97983618. Its totient is φ = 97983616.

The previous prime is 97983581. The next prime is 97983647. The reversal of 97983617 is 71638979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95863681 + 2119936 = 9791^2 + 1456^2 .

97983617 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 97983617 - 2¹⁰ = 97982593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97983647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48991808 + 48991809.

It is an arithmetic number, because the mean of its divisors is an integer number (48991809).

Almost surely, 2^97983617 is an apocalyptic number.

It is an amenable number.

97983617 is a deficient number, since it is larger than the sum of its proper divisors (1).

97983617 is an equidigital number, since it uses as much as digits as its factorization.

97983617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 50.

The square root of 97983617 is about 9898.6674355693. The cubic root of 97983617 is about 461.0179363531.

The spelling of 97983617 in words is "ninety-seven million, nine hundred eighty-three thousand, six hundred seventeen".