11866493 has 8 divisors (see below), whose sum is σ = 12778560. Its totient is φ = 10978240.

The previous prime is 11866487. The next prime is 11866549. The reversal of 11866493 is 39466811.

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 11866493 - 2¹⁴ = 11850109 is a prime.

It is a super-2 number, since 2×11866493² = 281627312238098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11866483) 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, 4913 + ... + 6918.

It is an arithmetic number, because the mean of its divisors is an integer number (1597320).

Almost surely, 2^11866493 is an apocalyptic number.

It is an amenable number.

11866493 is a deficient number, since it is larger than the sum of its proper divisors (912067).

11866493 is a wasteful number, since it uses less digits than its factorization.

11866493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11907.

The product of its digits is 31104, while the sum is 38.

The square root of 11866493 is about 3444.7776415902. Note that the first 3 decimals coincide. The cubic root of 11866493 is about 228.0906392984.

The spelling of 11866493 in words is "eleven million, eight hundred sixty-six thousand, four hundred ninety-three".