11493823 has 4 divisors (see below), whose sum is σ = 12538728. Its totient is φ = 10448920.

The previous prime is 11493799. The next prime is 11493827. The reversal of 11493823 is 32839411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11493823 - 2⁹ = 11493311 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11493827) 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, 522436 + ... + 522457.

It is an arithmetic number, because the mean of its divisors is an integer number (3134682).

Almost surely, 2^11493823 is an apocalyptic number.

11493823 is a deficient number, since it is larger than the sum of its proper divisors (1044905).

11493823 is a wasteful number, since it uses less digits than its factorization.

11493823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044904.

The product of its digits is 5184, while the sum is 31.

The square root of 11493823 is about 3390.2541202689. The cubic root of 11493823 is about 225.6774512229.

The spelling of 11493823 in words is "eleven million, four hundred ninety-three thousand, eight hundred twenty-three".