12376813 has 4 divisors (see below), whose sum is σ = 12409020. Its totient is φ = 12344608.

The previous prime is 12376811. The next prime is 12376853. The reversal of 12376813 is 31867321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7300804 + 5076009 = 2702^2 + 2253^2 .

It is a cyclic number.

It is not a de Polignac number, because 12376813 - 2¹ = 12376811 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 (12376811) 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, 15520 + ... + 16297.

It is an arithmetic number, because the mean of its divisors is an integer number (3102255).

It is a Poulet number, since it divides 2^12376812-1.

Almost surely, 2^12376813 is an apocalyptic number.

It is an amenable number.

12376813 is a deficient number, since it is larger than the sum of its proper divisors (32207).

12376813 is an equidigital number, since it uses as much as digits as its factorization.

12376813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32206.

The product of its digits is 6048, while the sum is 31.

The square root of 12376813 is about 3518.0694990293. The cubic root of 12376813 is about 231.3145456057.

The spelling of 12376813 in words is "twelve million, three hundred seventy-six thousand, eight hundred thirteen".