97998443 has 2 divisors, whose sum is σ = 97998444. Its totient is φ = 97998442.

The previous prime is 97998427. The next prime is 97998457. The reversal of 97998443 is 34489979.

It is a happy number.

It is a strong prime.

97998443 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 97998443 - 2⁴ = 97998427 is a prime.

It is not a weakly prime, because it can be changed into another prime (97998403) 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, 48999221 + 48999222.

It is an arithmetic number, because the mean of its divisors is an integer number (48999222).

Almost surely, 2^97998443 is an apocalyptic number.

97998443 is a deficient number, since it is larger than the sum of its proper divisors (1).

97998443 is an equidigital number, since it uses as much as digits as its factorization.

97998443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 53.

The square root of 97998443 is about 9899.4162959237. The cubic root of 97998443 is about 461.0411875435.

The spelling of 97998443 in words is "ninety-seven million, nine hundred ninety-eight thousand, four hundred forty-three".