97396813 has 2 divisors, whose sum is σ = 97396814. Its totient is φ = 97396812.

The previous prime is 97396807. The next prime is 97396829. The reversal of 97396813 is 31869379.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84879369 + 12517444 = 9213^2 + 3538^2 .

It is an emirp because it is prime and its reverse (31869379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97396813 - 2⁹ = 97396301 is a prime.

It is a super-2 number, since 2×97396813² = 18972278365113938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97391813) 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, 48698406 + 48698407.

It is an arithmetic number, because the mean of its divisors is an integer number (48698407).

Almost surely, 2^97396813 is an apocalyptic number.

It is an amenable number.

97396813 is a deficient number, since it is larger than the sum of its proper divisors (1).

97396813 is an equidigital number, since it uses as much as digits as its factorization.

97396813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 97396813 is about 9868.9823690186. The cubic root of 97396813 is about 460.0957787328.

The spelling of 97396813 in words is "ninety-seven million, three hundred ninety-six thousand, eight hundred thirteen".