12985713 has 12 divisors (see below), whose sum is σ = 20200180. Its totient is φ = 7991136.

The previous prime is 12985703. The next prime is 12985717. The reversal of 12985713 is 31758921.

It can be written as a sum of positive squares in 2 ways, for example, as 8625969 + 4359744 = 2937^2 + 2088^2 .

It is not a de Polignac number, because 12985713 - 2⁴ = 12985697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12985717) 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 11 ways as a sum of consecutive naturals, for example, 55378 + ... + 55611.

Almost surely, 2^12985713 is an apocalyptic number.

12985713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12985713 is a deficient number, since it is larger than the sum of its proper divisors (7214467).

12985713 is a wasteful number, since it uses less digits than its factorization.

12985713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111008 (or 111005 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 12985713 is about 3603.5694803902. The cubic root of 12985713 is about 235.0472999705.

The spelling of 12985713 in words is "twelve million, nine hundred eighty-five thousand, seven hundred thirteen".