12489685 has 8 divisors (see below), whose sum is σ = 16140600. Its totient is φ = 9223104.

The previous prime is 12489661. The next prime is 12489703. The reversal of 12489685 is 58698421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 529 + 12489156 = 23^2 + 3534^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12489685 - 2¹³ = 12481493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96010 + ... + 96139.

It is an arithmetic number, because the mean of its divisors is an integer number (2017575).

Almost surely, 2^12489685 is an apocalyptic number.

It is an amenable number.

12489685 is a deficient number, since it is larger than the sum of its proper divisors (3650915).

12489685 is a wasteful number, since it uses less digits than its factorization.

12489685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192167.

The product of its digits is 138240, while the sum is 43.

The square root of 12489685 is about 3534.0748435765. The cubic root of 12489685 is about 232.0155867946.

The spelling of 12489685 in words is "twelve million, four hundred eighty-nine thousand, six hundred eighty-five".