11660813 has 8 divisors (see below), whose sum is σ = 12698400. Its totient is φ = 10665648.

The previous prime is 11660807. The next prime is 11660833. The reversal of 11660813 is 31806611.

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

It is a cyclic number.

It is not a de Polignac number, because 11660813 - 2⁶ = 11660749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660833) 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, 10031 + ... + 11132.

It is an arithmetic number, because the mean of its divisors is an integer number (1587300).

Almost surely, 2^11660813 is an apocalyptic number.

It is an amenable number.

11660813 is a deficient number, since it is larger than the sum of its proper divisors (1037587).

11660813 is a wasteful number, since it uses less digits than its factorization.

11660813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21211.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 11660813 is about 3414.7932587493. The cubic root of 11660813 is about 226.7651319124.

The spelling of 11660813 in words is "eleven million, six hundred sixty thousand, eight hundred thirteen".