11197289 has 4 divisors (see below), whose sum is σ = 11786640. Its totient is φ = 10607940.

The previous prime is 11197279. The next prime is 11197301. The reversal of 11197289 is 98279111.

11197289 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-11197289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11197279) 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, 294647 + ... + 294684.

It is an arithmetic number, because the mean of its divisors is an integer number (2946660).

Almost surely, 2^11197289 is an apocalyptic number.

11197289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11197289 is a deficient number, since it is larger than the sum of its proper divisors (589351).

11197289 is an equidigital number, since it uses as much as digits as its factorization.

11197289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589350.

The product of its digits is 9072, while the sum is 38.

The square root of 11197289 is about 3346.2350485284. The cubic root of 11197289 is about 223.7197347826.

The spelling of 11197289 in words is "eleven million, one hundred ninety-seven thousand, two hundred eighty-nine".