9000197 has 4 divisors (see below), whose sum is σ = 9219756. Its totient is φ = 8780640.

The previous prime is 9000193. The next prime is 9000203. The reversal of 9000197 is 7910009.

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 3682561 + 5317636 = 1919^2 + 2306^2 .

It is a cyclic number.

It is not a de Polignac number, because 9000197 - 2² = 9000193 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 (9000193) 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, 109718 + ... + 109799.

It is an arithmetic number, because the mean of its divisors is an integer number (2304939).

Almost surely, 2^9000197 is an apocalyptic number.

It is an amenable number.

9000197 is a deficient number, since it is larger than the sum of its proper divisors (219559).

9000197 is a wasteful number, since it uses less digits than its factorization.

9000197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219558.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 9000197 is about 3000.0328331537. The cubic root of 9000197 is about 208.0098999849.

The spelling of 9000197 in words is "nine million, one hundred ninety-seven", and thus it is an aban number.