12616388 has 6 divisors (see below), whose sum is σ = 22078686. Its totient is φ = 6308192.

The previous prime is 12616339. The next prime is 12616427. The reversal of 12616388 is 88361621.

It can be written as a sum of positive squares in only one way, i.e., 11710084 + 906304 = 3422^2 + 952^2 .

It is an unprimeable number.

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, 1577045 + ... + 1577052.

It is an arithmetic number, because the mean of its divisors is an integer number (3679781).

Almost surely, 2^12616388 is an apocalyptic number.

It is an amenable number.

12616388 is a deficient number, since it is larger than the sum of its proper divisors (9462298).

12616388 is a wasteful number, since it uses less digits than its factorization.

12616388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154101 (or 3154099 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 12616388 is about 3551.9555177395. The cubic root of 12616388 is about 232.7975179134.

The spelling of 12616388 in words is "twelve million, six hundred sixteen thousand, three hundred eighty-eight".