11947424 has 12 divisors (see below), whose sum is σ = 23521554. Its totient is φ = 5973696.

The previous prime is 11947417. The next prime is 11947433. The reversal of 11947424 is 42474911.

It can be written as a sum of positive squares in only one way, i.e., 6091024 + 5856400 = 2468^2 + 2420^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 373357 = 11947424 / (1 + 1 + 9 + 4 + 7 + 4 + 2 + 4).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 186647 + ... + 186710.

Almost surely, 2^11947424 is an apocalyptic number.

It is an amenable number.

11947424 is a deficient number, since it is larger than the sum of its proper divisors (11574130).

11947424 is an equidigital number, since it uses as much as digits as its factorization.

11947424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373367 (or 373359 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 11947424 is about 3456.5045927931. The cubic root of 11947424 is about 228.6080006957.

The spelling of 11947424 in words is "eleven million, nine hundred forty-seven thousand, four hundred twenty-four".