6600197 has 4 divisors (see below), whose sum is σ = 6827820. Its totient is φ = 6372576.

The previous prime is 6600169. The next prime is 6600211. The reversal of 6600197 is 7910066.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5612161 + 988036 = 2369^2 + 994^2 .

It is not a de Polignac number, because 6600197 - 2⁶ = 6600133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 227593 = 6600197 / (6 + 6 + 0 + 0 + 1 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6600107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113768 + ... + 113825.

It is an arithmetic number, because the mean of its divisors is an integer number (1706955).

Almost surely, 2^6600197 is an apocalyptic number.

It is an amenable number.

6600197 is a deficient number, since it is larger than the sum of its proper divisors (227623).

6600197 is a wasteful number, since it uses less digits than its factorization.

6600197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227622.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 6600197 is about 2569.0848565199. The cubic root of 6600197 is about 187.5796118220.

The spelling of 6600197 in words is "six million, six hundred thousand, one hundred ninety-seven".