12586628 has 6 divisors (see below), whose sum is σ = 22026606. Its totient is φ = 6293312.

The previous prime is 12586627. The next prime is 12586633. The reversal of 12586628 is 82668521.

It can be written as a sum of positive squares in only one way, i.e., 12264004 + 322624 = 3502^2 + 568^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12586591 and 12586600.

It is not an unprimeable number, because it can be changed into a prime (12586621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573325 + ... + 1573332.

It is an arithmetic number, because the mean of its divisors is an integer number (3671101).

Almost surely, 2^12586628 is an apocalyptic number.

It is an amenable number.

12586628 is a deficient number, since it is larger than the sum of its proper divisors (9439978).

12586628 is a wasteful number, since it uses less digits than its factorization.

12586628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146661 (or 3146659 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 12586628 is about 3547.7638027355. The cubic root of 12586628 is about 232.6143300188.

The spelling of 12586628 in words is "twelve million, five hundred eighty-six thousand, six hundred twenty-eight".