11947760 has 40 divisors (see below), whose sum is σ = 30306096. Its totient is φ = 4344320.

The previous prime is 11947721. The next prime is 11947763. The reversal of 11947760 is 6774911.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 11947760.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11947763) 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 7 ways as a sum of consecutive naturals, for example, 5909 + ... + 7668.

Almost surely, 2^11947760 is an apocalyptic number.

11947760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11947760 is an abundant number, since it is smaller than the sum of its proper divisors (18358336).

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

11947760 is a wasteful number, since it uses less digits than its factorization.

11947760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13601 (or 13595 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 11947760 is about 3456.5531964661. The cubic root of 11947760 is about 228.6101437397.

The spelling of 11947760 in words is "eleven million, nine hundred forty-seven thousand, seven hundred sixty".