12493823 has 4 divisors (see below), whose sum is σ = 12503160. Its totient is φ = 12484488.

The previous prime is 12493783. The next prime is 12493829. The reversal of 12493823 is 32839421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12493823 - 2¹² = 12489727 is a prime.

It is a super-2 number, since 2×12493823² = 312191226310658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12493823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12493829) 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, 2240 + ... + 5477.

It is an arithmetic number, because the mean of its divisors is an integer number (3125790).

Almost surely, 2^12493823 is an apocalyptic number.

12493823 is a deficient number, since it is larger than the sum of its proper divisors (9337).

12493823 is an equidigital number, since it uses as much as digits as its factorization.

12493823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9336.

The product of its digits is 10368, while the sum is 32.

The square root of 12493823 is about 3534.6602382690. The cubic root of 12493823 is about 232.0412072563.

The spelling of 12493823 in words is "twelve million, four hundred ninety-three thousand, eight hundred twenty-three".