12538684 has 6 divisors (see below), whose sum is σ = 21942704. Its totient is φ = 6269340.

The previous prime is 12538679. The next prime is 12538723. The reversal of 12538684 is 48683521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1567332 + ... + 1567339.

Almost surely, 2^12538684 is an apocalyptic number.

It is an amenable number.

12538684 is a deficient number, since it is larger than the sum of its proper divisors (9404020).

12538684 is a wasteful number, since it uses less digits than its factorization.

12538684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134675 (or 3134673 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 12538684 is about 3541.0004236091. Note that the first 3 decimals coincide. The cubic root of 12538684 is about 232.3186021018.

It can be divided in two parts, 125 and 38684, that added together give a square (38809 = 197²).

The spelling of 12538684 in words is "twelve million, five hundred thirty-eight thousand, six hundred eighty-four".