97944853 has 2 divisors, whose sum is σ = 97944854. Its totient is φ = 97944852.

The previous prime is 97944839. The next prime is 97944857. The reversal of 97944853 is 35844979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91355364 + 6589489 = 9558^2 + 2567^2 .

It is an emirp because it is prime and its reverse (35844979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97944853 - 2¹³ = 97936661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97944797 and 97944806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97944857) 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, 48972426 + 48972427.

It is an arithmetic number, because the mean of its divisors is an integer number (48972427).

Almost surely, 2^97944853 is an apocalyptic number.

It is an amenable number.

97944853 is a deficient number, since it is larger than the sum of its proper divisors (1).

97944853 is an equidigital number, since it uses as much as digits as its factorization.

97944853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 97944853 is about 9896.7092005373. The cubic root of 97944853 is about 460.9571327989.

The spelling of 97944853 in words is "ninety-seven million, nine hundred forty-four thousand, eight hundred fifty-three".