97198065 has 12 divisors (see below), whose sum is σ = 168476724. Its totient is φ = 51838944.

The previous prime is 97198033. The next prime is 97198093. The reversal of 97198065 is 56089179.

It can be written as a sum of positive squares in 2 ways, for example, as 31539456 + 65658609 = 5616^2 + 8103^2 .

It is not a de Polignac number, because 97198065 - 2⁵ = 97198033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2159957 = 97198065 / (9 + 7 + 1 + 9 + 8 + 0 + 6 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 97198065.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 1079934 + ... + 1080023.

It is an arithmetic number, because the mean of its divisors is an integer number (14039727).

Almost surely, 2^97198065 is an apocalyptic number.

It is an amenable number.

97198065 is a deficient number, since it is larger than the sum of its proper divisors (71278659).

97198065 is a wasteful number, since it uses less digits than its factorization.

97198065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159968 (or 2159965 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 97198065 is about 9858.9079009797. The cubic root of 97198065 is about 459.7826083691.

The spelling of 97198065 in words is "ninety-seven million, one hundred ninety-eight thousand, sixty-five".