12117673 has 4 divisors (see below), whose sum is σ = 12413268. Its totient is φ = 11822080.

The previous prime is 12117659. The next prime is 12117689. The reversal of 12117673 is 37671121.

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 1671849 + 10445824 = 1293^2 + 3232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12117673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12117473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147736 + ... + 147817.

It is an arithmetic number, because the mean of its divisors is an integer number (3103317).

Almost surely, 2^12117673 is an apocalyptic number.

It is an amenable number.

12117673 is a deficient number, since it is larger than the sum of its proper divisors (295595).

12117673 is an equidigital number, since it uses as much as digits as its factorization.

12117673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295594.

The product of its digits is 1764, while the sum is 28.

The square root of 12117673 is about 3481.0448144199. The cubic root of 12117673 is about 229.6887598586.

Adding to 12117673 its reverse (37671121), we get a palindrome (49788794).

It can be divided in two parts, 12117 and 673, that multiplied together give a triangular number (8154741 = T₄₀₃₈).

The spelling of 12117673 in words is "twelve million, one hundred seventeen thousand, six hundred seventy-three".