97083509 has 2 divisors, whose sum is σ = 97083510. Its totient is φ = 97083508.

The previous prime is 97083491. The next prime is 97083589. The reversal of 97083509 is 90538079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97022500 + 61009 = 9850^2 + 247^2 .

It is an emirp because it is prime and its reverse (90538079) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97083509 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97083589) 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, 48541754 + 48541755.

It is an arithmetic number, because the mean of its divisors is an integer number (48541755).

Almost surely, 2^97083509 is an apocalyptic number.

It is an amenable number.

97083509 is a deficient number, since it is larger than the sum of its proper divisors (1).

97083509 is an equidigital number, since it uses as much as digits as its factorization.

97083509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 97083509 is about 9853.0964168631. The cubic root of 97083509 is about 459.6019066841.

The spelling of 97083509 in words is "ninety-seven million, eighty-three thousand, five hundred nine".