12382813 has 4 divisors (see below), whose sum is σ = 13034560. Its totient is φ = 11731068.

The previous prime is 12382807. The next prime is 12382823. The reversal of 12382813 is 31828321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31828321 = 7 ⋅4546903.

It is a cyclic number.

It is not a de Polignac number, because 12382813 - 2⁵ = 12382781 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 (12382823) 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, 325845 + ... + 325882.

It is an arithmetic number, because the mean of its divisors is an integer number (3258640).

Almost surely, 2^12382813 is an apocalyptic number.

It is an amenable number.

12382813 is a deficient number, since it is larger than the sum of its proper divisors (651747).

12382813 is an equidigital number, since it uses as much as digits as its factorization.

12382813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651746.

The product of its digits is 2304, while the sum is 28.

The square root of 12382813 is about 3518.9221361093. The cubic root of 12382813 is about 231.3519182600.

The spelling of 12382813 in words is "twelve million, three hundred eighty-two thousand, eight hundred thirteen".