11944947 has 8 divisors (see below), whose sum is σ = 18201856. Its totient is φ = 6825672.

The previous prime is 11944913. The next prime is 11944979. The reversal of 11944947 is 74944911.

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

It is not a de Polignac number, because 11944947 - 2⁷ = 11944819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11944997) 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, 284383 + ... + 284424.

It is an arithmetic number, because the mean of its divisors is an integer number (2275232).

Almost surely, 2^11944947 is an apocalyptic number.

11944947 is a deficient number, since it is larger than the sum of its proper divisors (6256909).

11944947 is an equidigital number, since it uses as much as digits as its factorization.

11944947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568817.

The product of its digits is 36288, while the sum is 39.

The square root of 11944947 is about 3456.1462642660. The cubic root of 11944947 is about 228.5922008838.

The spelling of 11944947 in words is "eleven million, nine hundred forty-four thousand, nine hundred forty-seven".