97633309 has 2 divisors, whose sum is σ = 97633310. Its totient is φ = 97633308.

The previous prime is 97633303. The next prime is 97633331. The reversal of 97633309 is 90333679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75307684 + 22325625 = 8678^2 + 4725^2 .

It is an emirp because it is prime and its reverse (90333679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97633309 - 2¹⁹ = 97109021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97633303) 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, 48816654 + 48816655.

It is an arithmetic number, because the mean of its divisors is an integer number (48816655).

Almost surely, 2^97633309 is an apocalyptic number.

It is an amenable number.

97633309 is a deficient number, since it is larger than the sum of its proper divisors (1).

97633309 is an equidigital number, since it uses as much as digits as its factorization.

97633309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 40.

The square root of 97633309 is about 9880.9568868607. The cubic root of 97633309 is about 460.4678746162.

The spelling of 97633309 in words is "ninety-seven million, six hundred thirty-three thousand, three hundred nine".