11664257 has 8 divisors (see below), whose sum is σ = 12761472. Its totient is φ = 10573200.

The previous prime is 11664253. The next prime is 11664281. The reversal of 11664257 is 75246611.

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

It is not a de Polignac number, because 11664257 - 2² = 11664253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11664253) 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, 3032 + ... + 5702.

It is an arithmetic number, because the mean of its divisors is an integer number (1595184).

Almost surely, 2^11664257 is an apocalyptic number.

It is an amenable number.

11664257 is a deficient number, since it is larger than the sum of its proper divisors (1097215).

11664257 is a wasteful number, since it uses less digits than its factorization.

11664257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079.

The product of its digits is 10080, while the sum is 32.

The square root of 11664257 is about 3415.2974980227. The cubic root of 11664257 is about 226.7874546052.

The spelling of 11664257 in words is "eleven million, six hundred sixty-four thousand, two hundred fifty-seven".