11197847 has 2 divisors, whose sum is σ = 11197848. Its totient is φ = 11197846.

The previous prime is 11197829. The next prime is 11197873. The reversal of 11197847 is 74879111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11197847 - 2¹⁶ = 11132311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11197847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11197807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5598923 + 5598924.

It is an arithmetic number, because the mean of its divisors is an integer number (5598924).

Almost surely, 2^11197847 is an apocalyptic number.

11197847 is a deficient number, since it is larger than the sum of its proper divisors (1).

11197847 is an equidigital number, since it uses as much as digits as its factorization.

11197847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 38.

The square root of 11197847 is about 3346.3184247767. The cubic root of 11197847 is about 223.7234509660.

The spelling of 11197847 in words is "eleven million, one hundred ninety-seven thousand, eight hundred forty-seven".