11972447 has 8 divisors (see below), whose sum is σ = 12674640. Its totient is φ = 11289600.

The previous prime is 11972407. The next prime is 11972459. The reversal of 11972447 is 74427911.

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 11972447 - 2¹⁶ = 11906911 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 (11972407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3554 + ... + 6047.

It is an arithmetic number, because the mean of its divisors is an integer number (1584330).

Almost surely, 2^11972447 is an apocalyptic number.

11972447 is a deficient number, since it is larger than the sum of its proper divisors (702193).

11972447 is an equidigital number, since it uses as much as digits as its factorization.

11972447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9673.

The product of its digits is 14112, while the sum is 35.

The square root of 11972447 is about 3460.1223966791. The cubic root of 11972447 is about 228.7674902768.

The spelling of 11972447 in words is "eleven million, nine hundred seventy-two thousand, four hundred forty-seven".