11981793 has 8 divisors (see below), whose sum is σ = 16003008. Its totient is φ = 7974224.

The previous prime is 11981791. The next prime is 11981813. The reversal of 11981793 is 39718911.

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 11981793 - 2¹ = 11981791 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11981791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146 + ... + 5027.

It is an arithmetic number, because the mean of its divisors is an integer number (2000376).

Almost surely, 2^11981793 is an apocalyptic number.

It is an amenable number.

11981793 is a deficient number, since it is larger than the sum of its proper divisors (4021215).

11981793 is an equidigital number, since it uses as much as digits as its factorization.

11981793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6823.

The product of its digits is 13608, while the sum is 39.

The square root of 11981793 is about 3461.4726634772. The cubic root of 11981793 is about 228.8270020559.

The spelling of 11981793 in words is "eleven million, nine hundred eighty-one thousand, seven hundred ninety-three".