11197843 has 4 divisors (see below), whose sum is σ = 11204928. Its totient is φ = 11190760.

The previous prime is 11197829. The next prime is 11197847. The reversal of 11197843 is 34879111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11197843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11197799 and 11197808.

It is not an unprimeable number, because it can be changed into a prime (11197847) 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, 30 + ... + 4732.

It is an arithmetic number, because the mean of its divisors is an integer number (2801232).

Almost surely, 2^11197843 is an apocalyptic number.

11197843 is a deficient number, since it is larger than the sum of its proper divisors (7085).

11197843 is an equidigital number, since it uses as much as digits as its factorization.

11197843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7084.

The product of its digits is 6048, while the sum is 34.

The square root of 11197843 is about 3346.3178271049. The cubic root of 11197843 is about 223.7234243272.

The spelling of 11197843 in words is "eleven million, one hundred ninety-seven thousand, eight hundred forty-three".