11216947 has 8 divisors (see below), whose sum is σ = 13233152. Its totient is φ = 9304200.

The previous prime is 11216929. The next prime is 11216951. The reversal of 11216947 is 74961211.

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

It is a cyclic number.

It is not a de Polignac number, because 11216947 - 2⁷ = 11216819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11216927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25629 + ... + 26062.

It is an arithmetic number, because the mean of its divisors is an integer number (1654144).

Almost surely, 2^11216947 is an apocalyptic number.

11216947 is a deficient number, since it is larger than the sum of its proper divisors (2016205).

11216947 is an equidigital number, since it uses as much as digits as its factorization.

11216947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51729.

The product of its digits is 3024, while the sum is 31.

The square root of 11216947 is about 3349.1710914792. The cubic root of 11216947 is about 223.8505792935.

The spelling of 11216947 in words is "eleven million, two hundred sixteen thousand, nine hundred forty-seven".