12673985 has 8 divisors (see below), whose sum is σ = 15359976. Its totient is φ = 10038400.

The previous prime is 12673951. The next prime is 12673987. The reversal of 12673985 is 58937621.

It can be written as a sum of positive squares in 4 ways, for example, as 2989441 + 9684544 = 1729^2 + 3112^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12673985 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12673987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12044 + ... + 13053.

It is an arithmetic number, because the mean of its divisors is an integer number (1919997).

Almost surely, 2^12673985 is an apocalyptic number.

It is an amenable number.

12673985 is a deficient number, since it is larger than the sum of its proper divisors (2685991).

12673985 is a wasteful number, since it uses less digits than its factorization.

12673985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25203.

The product of its digits is 90720, while the sum is 41.

The square root of 12673985 is about 3560.0540726231. The cubic root of 12673985 is about 233.1512400175.

The spelling of 12673985 in words is "twelve million, six hundred seventy-three thousand, nine hundred eighty-five".