11772447 has 16 divisors (see below), whose sum is σ = 16087680. Its totient is φ = 7655072.

The previous prime is 11772443. The next prime is 11772473. The reversal of 11772447 is 74427711.

11772447 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11772447 - 2² = 11772443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11772443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40033 + ... + 40325.

It is an arithmetic number, because the mean of its divisors is an integer number (1005480).

Almost surely, 2^11772447 is an apocalyptic number.

11772447 is a deficient number, since it is larger than the sum of its proper divisors (4315233).

11772447 is a wasteful number, since it uses less digits than its factorization.

11772447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582.

The product of its digits is 10976, while the sum is 33.

The square root of 11772447 is about 3431.0999693976. The cubic root of 11772447 is about 227.4864750644.

The spelling of 11772447 in words is "eleven million, seven hundred seventy-two thousand, four hundred forty-seven".