97373813 has 2 divisors, whose sum is σ = 97373814. Its totient is φ = 97373812.

The previous prime is 97373779. The next prime is 97373819. The reversal of 97373813 is 31837379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91718929 + 5654884 = 9577^2 + 2378^2 .

It is a cyclic number.

It is not a de Polignac number, because 97373813 - 2⁸ = 97373557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97373819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48686906 + 48686907.

It is an arithmetic number, because the mean of its divisors is an integer number (48686907).

Almost surely, 2^97373813 is an apocalyptic number.

It is an amenable number.

97373813 is a deficient number, since it is larger than the sum of its proper divisors (1).

97373813 is an equidigital number, since it uses as much as digits as its factorization.

97373813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 41.

The square root of 97373813 is about 9867.8170331639. The cubic root of 97373813 is about 460.0595590809.

The spelling of 97373813 in words is "ninety-seven million, three hundred seventy-three thousand, eight hundred thirteen".