12073617 has 10 divisors (see below), whose sum is σ = 18036018. Its totient is φ = 8049024.

The previous prime is 12073613. The next prime is 12073627. The reversal of 12073617 is 71637021.

It can be written as a sum of positive squares in only one way, i.e., 6765201 + 5308416 = 2601^2 + 2304^2 .

It is not a de Polignac number, because 12073617 - 2² = 12073613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12073613) 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 9 ways as a sum of consecutive naturals, for example, 74448 + ... + 74609.

Almost surely, 2^12073617 is an apocalyptic number.

It is an amenable number.

12073617 is a deficient number, since it is larger than the sum of its proper divisors (5962401).

12073617 is an equidigital number, since it uses as much as digits as its factorization.

12073617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149069 (or 149060 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 12073617 is about 3474.7110671249. The cubic root of 12073617 is about 229.4100634402.

It can be divided in two parts, 120 and 73617, that added together give a palindrome (73737).

The spelling of 12073617 in words is "twelve million, seventy-three thousand, six hundred seventeen".