97198117 has 4 divisors (see below), whose sum is σ = 97217836. Its totient is φ = 97178400.

The previous prime is 97198109. The next prime is 97198121. The reversal of 97198117 is 71189179.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 95277121 + 1920996 = 9761^2 + 1386^2 .

It is a cyclic number.

It is not a de Polignac number, because 97198117 - 2³ = 97198109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97198177) 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 in 3 ways as a sum of consecutive naturals, for example, 4867 + ... + 14767.

It is an arithmetic number, because the mean of its divisors is an integer number (24304459).

Almost surely, 2^97198117 is an apocalyptic number.

It is an amenable number.

97198117 is a deficient number, since it is larger than the sum of its proper divisors (19719).

97198117 is an equidigital number, since it uses as much as digits as its factorization.

97198117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19718.

The product of its digits is 31752, while the sum is 43.

The square root of 97198117 is about 9858.9105381883. The cubic root of 97198117 is about 459.7826903621.

The spelling of 97198117 in words is "ninety-seven million, one hundred ninety-eight thousand, one hundred seventeen".