12985673 has 2 divisors, whose sum is σ = 12985674. Its totient is φ = 12985672.

The previous prime is 12985669. The next prime is 12985697. The reversal of 12985673 is 37658921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6775609 + 6210064 = 2603^2 + 2492^2 .

It is a cyclic number.

It is not a de Polignac number, because 12985673 - 2² = 12985669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12985673.

It is not a weakly prime, because it can be changed into another prime (12985633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6492836 + 6492837.

It is an arithmetic number, because the mean of its divisors is an integer number (6492837).

Almost surely, 2^12985673 is an apocalyptic number.

It is an amenable number.

12985673 is a deficient number, since it is larger than the sum of its proper divisors (1).

12985673 is an equidigital number, since it uses as much as digits as its factorization.

12985673 is an evil number, because the sum of its binary digits is even.

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

The square root of 12985673 is about 3603.5639303334. The cubic root of 12985673 is about 235.0470586308.

The spelling of 12985673 in words is "twelve million, nine hundred eighty-five thousand, six hundred seventy-three".