9810989197 has 8 divisors (see below), whose sum is σ = 10029427200. Its totient is φ = 9592955184.

The previous prime is 9810989183. The next prime is 9810989203. The reversal of 9810989197 is 7919890189.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9810989197 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 (9810989117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51622 + ... + 149287.

It is an arithmetic number, because the mean of its divisors is an integer number (1253678400).

Almost surely, 2^9810989197 is an apocalyptic number.

It is an amenable number.

9810989197 is a deficient number, since it is larger than the sum of its proper divisors (218438003).

9810989197 is a wasteful number, since it uses less digits than its factorization.

9810989197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201995.

The product of its (nonzero) digits is 2939328, while the sum is 61.

The square root of 9810989197 is about 99050.4376416379. The cubic root of 9810989197 is about 2140.7745469059.

The spelling of 9810989197 in words is "nine billion, eight hundred ten million, nine hundred eighty-nine thousand, one hundred ninety-seven".