11197047 has 4 divisors (see below), whose sum is σ = 14929400. Its totient is φ = 7464696.

The previous prime is 11197037. The next prime is 11197063. The reversal of 11197047 is 74079111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74079111 = 3 ⋅24693037.

It is not a de Polignac number, because 11197047 - 2⁷ = 11196919 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 (11197037) 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, 1866172 + ... + 1866177.

It is an arithmetic number, because the mean of its divisors is an integer number (3732350).

Almost surely, 2^11197047 is an apocalyptic number.

11197047 is a deficient number, since it is larger than the sum of its proper divisors (3732353).

11197047 is an equidigital number, since it uses as much as digits as its factorization.

11197047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3732352.

The product of its (nonzero) digits is 1764, while the sum is 30.

The square root of 11197047 is about 3346.1988882910. The cubic root of 11197047 is about 223.7181230661.

The spelling of 11197047 in words is "eleven million, one hundred ninety-seven thousand, forty-seven".