11947008 has 44 divisors (see below), whose sum is σ = 31851320. Its totient is φ = 3981312.

The previous prime is 11947007. The next prime is 11947009. The reversal of 11947008 is 80074911.

It is an interprime number because it is at equal distance from previous prime (11947007) and next prime (11947009).

It is not an unprimeable number, because it can be changed into a prime (11947007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128 + ... + 5016.

Almost surely, 2^11947008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11947008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15925660).

11947008 is an abundant number, since it is smaller than the sum of its proper divisors (19904312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11947008 is an equidigital number, since it uses as much as digits as its factorization.

11947008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3912 (or 3894 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 11947008 is about 3456.4444158702. Note that the first 4 decimals coincide. The cubic root of 11947008 is about 228.6053473473.

The spelling of 11947008 in words is "eleven million, nine hundred forty-seven thousand, eight".