11393891 has 8 divisors (see below), whose sum is σ = 11752944. Its totient is φ = 11037600.

The previous prime is 11393873. The next prime is 11393923. The reversal of 11393891 is 19839311.

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 11393891 - 2⁶ = 11393827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11393801) 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, 10316 + ... + 11366.

It is an arithmetic number, because the mean of its divisors is an integer number (1469118).

Almost surely, 2^11393891 is an apocalyptic number.

11393891 is a deficient number, since it is larger than the sum of its proper divisors (359053).

11393891 is a wasteful number, since it uses less digits than its factorization.

11393891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381.

The product of its digits is 5832, while the sum is 35.

The square root of 11393891 is about 3375.4838171735. The cubic root of 11393891 is about 225.0215024718.

The spelling of 11393891 in words is "eleven million, three hundred ninety-three thousand, eight hundred ninety-one".