9840197 has 4 divisors (see below), whose sum is σ = 10007040. Its totient is φ = 9673356.

The previous prime is 9840179. The next prime is 9840199. The reversal of 9840197 is 7910489.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9840197 - 2⁶ = 9840133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9840197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9840199) 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, 83333 + ... + 83450.

It is an arithmetic number, because the mean of its divisors is an integer number (2501760).

Almost surely, 2^9840197 is an apocalyptic number.

It is an amenable number.

9840197 is a deficient number, since it is larger than the sum of its proper divisors (166843).

9840197 is a wasteful number, since it uses less digits than its factorization.

9840197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166842.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 9840197 is about 3136.9088287676. The cubic root of 9840197 is about 214.2896839688.

The spelling of 9840197 in words is "nine million, eight hundred forty thousand, one hundred ninety-seven".