12673819 has 4 divisors (see below), whose sum is σ = 12687696. Its totient is φ = 12659944.

The previous prime is 12673811. The next prime is 12673831. The reversal of 12673819 is 91837621.

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 12673819 - 2³ = 12673811 is a prime.

It is a super-2 number, since 2×12673819² = 321251376089522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12673811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5464 + ... + 7429.

It is an arithmetic number, because the mean of its divisors is an integer number (3171924).

Almost surely, 2^12673819 is an apocalyptic number.

12673819 is a deficient number, since it is larger than the sum of its proper divisors (13877).

12673819 is an equidigital number, since it uses as much as digits as its factorization.

12673819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13876.

The product of its digits is 18144, while the sum is 37.

The square root of 12673819 is about 3560.0307582941. The cubic root of 12673819 is about 233.1502220984.

The spelling of 12673819 in words is "twelve million, six hundred seventy-three thousand, eight hundred nineteen".