11393881 has 8 divisors (see below), whose sum is σ = 11721600. Its totient is φ = 11069808.

The previous prime is 11393873. The next prime is 11393923. The reversal of 11393881 is 18839311.

It is a happy number.

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 11393881 - 2³ = 11393873 is a prime.

It is a super-2 number, since 2×11393881² = 259641048484322, which contains 22 as substring.

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, 6190 + ... + 7816.

It is an arithmetic number, because the mean of its divisors is an integer number (1465200).

Almost surely, 2^11393881 is an apocalyptic number.

It is an amenable number.

11393881 is a deficient number, since it is larger than the sum of its proper divisors (327719).

11393881 is a wasteful number, since it uses less digits than its factorization.

11393881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823.

The product of its digits is 5184, while the sum is 34.

The square root of 11393881 is about 3375.4823359040. The cubic root of 11393881 is about 225.0214366407.

The spelling of 11393881 in words is "eleven million, three hundred ninety-three thousand, eight hundred eighty-one".