11439223 has 4 divisors (see below), whose sum is σ = 11544280. Its totient is φ = 11334168.

The previous prime is 11439221. The next prime is 11439227. The reversal of 11439223 is 32293411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32293411 = 383 ⋅84317.

It is a cyclic number.

It is not a de Polignac number, because 11439223 - 2¹ = 11439221 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 (11439221) 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, 52365 + ... + 52582.

It is an arithmetic number, because the mean of its divisors is an integer number (2886070).

Almost surely, 2^11439223 is an apocalyptic number.

11439223 is a deficient number, since it is larger than the sum of its proper divisors (105057).

11439223 is a wasteful number, since it uses less digits than its factorization.

11439223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105056.

The product of its digits is 1296, while the sum is 25.

The square root of 11439223 is about 3382.1920406742. The cubic root of 11439223 is about 225.3195328332.

The spelling of 11439223 in words is "eleven million, four hundred thirty-nine thousand, two hundred twenty-three".