12986704 has 20 divisors (see below), whose sum is σ = 25842964. Its totient is φ = 6317568.

The previous prime is 12986689. The next prime is 12986707. The reversal of 12986704 is 40768921.

It can be written as a sum of positive squares in 2 ways, for example, as 7033104 + 5953600 = 2652^2 + 2440^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12986707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10377 + ... + 11560.

Almost surely, 2^12986704 is an apocalyptic number.

It is an amenable number.

12986704 is a deficient number, since it is larger than the sum of its proper divisors (12856260).

12986704 is a wasteful number, since it uses less digits than its factorization.

12986704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21982 (or 21976 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 12986704 is about 3603.7069803190. The cubic root of 12986704 is about 235.0532790017.

The spelling of 12986704 in words is "twelve million, nine hundred eighty-six thousand, seven hundred four".