11393391 has 4 divisors (see below), whose sum is σ = 15191192. Its totient is φ = 7595592.

The previous prime is 11393387. The next prime is 11393401. The reversal of 11393391 is 19339311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19339311 = 3 ⋅6446437.

It is not a de Polignac number, because 11393391 - 2² = 11393387 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 (11393311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1898896 + ... + 1898901.

It is an arithmetic number, because the mean of its divisors is an integer number (3797798).

Almost surely, 2^11393391 is an apocalyptic number.

11393391 is a deficient number, since it is larger than the sum of its proper divisors (3797801).

11393391 is an equidigital number, since it uses as much as digits as its factorization.

11393391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797800.

The product of its digits is 2187, while the sum is 30.

The square root of 11393391 is about 3375.4097529041. The cubic root of 11393391 is about 225.0182108717.

The spelling of 11393391 in words is "eleven million, three hundred ninety-three thousand, three hundred ninety-one".