97189903 has 2 divisors, whose sum is σ = 97189904. Its totient is φ = 97189902.

The previous prime is 97189889. The next prime is 97189909. The reversal of 97189903 is 30998179.

It is a strong prime.

It is an emirp because it is prime and its reverse (30998179) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97189903 - 2⁵ = 97189871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97189909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48594951 + 48594952.

It is an arithmetic number, because the mean of its divisors is an integer number (48594952).

Almost surely, 2^97189903 is an apocalyptic number.

97189903 is a deficient number, since it is larger than the sum of its proper divisors (1).

97189903 is an equidigital number, since it uses as much as digits as its factorization.

97189903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 97189903 is about 9858.4939519178. The cubic root of 97189903 is about 459.7697382545.

The spelling of 97189903 in words is "ninety-seven million, one hundred eighty-nine thousand, nine hundred three".