97934393 has 2 divisors, whose sum is σ = 97934394. Its totient is φ = 97934392.

The previous prime is 97934387. The next prime is 97934411. The reversal of 97934393 is 39343979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90687529 + 7246864 = 9523^2 + 2692^2 .

It is an emirp because it is prime and its reverse (39343979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97934393 - 2¹⁶ = 97868857 is a prime.

It is a super-2 number, since 2×97934393² = 19182290664556898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97934293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48967196 + 48967197.

It is an arithmetic number, because the mean of its divisors is an integer number (48967197).

Almost surely, 2^97934393 is an apocalyptic number.

It is an amenable number.

97934393 is a deficient number, since it is larger than the sum of its proper divisors (1).

97934393 is an equidigital number, since it uses as much as digits as its factorization.

97934393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 551124, while the sum is 47.

The square root of 97934393 is about 9896.1807279374. The cubic root of 97934393 is about 460.9407229414.

The spelling of 97934393 in words is "ninety-seven million, nine hundred thirty-four thousand, three hundred ninety-three".