11668547 has 4 divisors (see below), whose sum is σ = 12729336. Its totient is φ = 10607760.

The previous prime is 11668541. The next prime is 11668583. The reversal of 11668547 is 74586611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11668547 - 2¹⁴ = 11652163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11668547.

It is not an unprimeable number, because it can be changed into a prime (11668541) 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, 530378 + ... + 530399.

It is an arithmetic number, because the mean of its divisors is an integer number (3182334).

Almost surely, 2^11668547 is an apocalyptic number.

11668547 is a deficient number, since it is larger than the sum of its proper divisors (1060789).

11668547 is a wasteful number, since it uses less digits than its factorization.

11668547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060788.

The product of its digits is 40320, while the sum is 38.

The square root of 11668547 is about 3415.9254968456. The cubic root of 11668547 is about 226.8152546022.

The spelling of 11668547 in words is "eleven million, six hundred sixty-eight thousand, five hundred forty-seven".