11805493 has 8 divisors (see below), whose sum is σ = 13513088. Its totient is φ = 10103184.

The previous prime is 11805491. The next prime is 11805503. The reversal of 11805493 is 39450811.

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

It is not a de Polignac number, because 11805493 - 2¹ = 11805491 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 (11805491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6880 + ... + 8422.

It is an arithmetic number, because the mean of its divisors is an integer number (1689136).

Almost surely, 2^11805493 is an apocalyptic number.

It is an amenable number.

11805493 is a deficient number, since it is larger than the sum of its proper divisors (1707595).

11805493 is a wasteful number, since it uses less digits than its factorization.

11805493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 11805493 is about 3435.9122514989. The cubic root of 11805493 is about 227.6991324939.

The spelling of 11805493 in words is "eleven million, eight hundred five thousand, four hundred ninety-three".