11423391 has 8 divisors (see below), whose sum is σ = 17407104. Its totient is φ = 6527640.

The previous prime is 11423381. The next prime is 11423411. The reversal of 11423391 is 19332411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11423391 - 2⁵ = 11423359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11423381) 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, 271965 + ... + 272006.

It is an arithmetic number, because the mean of its divisors is an integer number (2175888).

Almost surely, 2^11423391 is an apocalyptic number.

11423391 is a deficient number, since it is larger than the sum of its proper divisors (5983713).

11423391 is an equidigital number, since it uses as much as digits as its factorization.

11423391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543981.

The product of its digits is 648, while the sum is 24.

The square root of 11423391 is about 3379.8507363492. The cubic root of 11423391 is about 225.2155366726.

The spelling of 11423391 in words is "eleven million, four hundred twenty-three thousand, three hundred ninety-one".