11047947 has 8 divisors (see below), whose sum is σ = 15073344. Its totient is φ = 7193928.

The previous prime is 11047931. The next prime is 11047973. The reversal of 11047947 is 74974011.

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

It is not a de Polignac number, because 11047947 - 2⁴ = 11047931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11047247) 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, 42693 + ... + 42950.

It is an arithmetic number, because the mean of its divisors is an integer number (1884168).

Almost surely, 2^11047947 is an apocalyptic number.

11047947 is a deficient number, since it is larger than the sum of its proper divisors (4025397).

11047947 is an equidigital number, since it uses as much as digits as its factorization.

11047947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85689.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 11047947 is about 3323.8452130026. The cubic root of 11047947 is about 222.7206715295.

The spelling of 11047947 in words is "eleven million, forty-seven thousand, nine hundred forty-seven".