12887416 has 8 divisors (see below), whose sum is σ = 24163920. Its totient is φ = 6443704.

The previous prime is 12887389. The next prime is 12887417. The reversal of 12887416 is 61478821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12887417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805456 + ... + 805471.

It is an arithmetic number, because the mean of its divisors is an integer number (3020490).

Almost surely, 2^12887416 is an apocalyptic number.

It is an amenable number.

12887416 is a deficient number, since it is larger than the sum of its proper divisors (11276504).

12887416 is a wasteful number, since it uses less digits than its factorization.

12887416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610933 (or 1610929 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 12887416 is about 3589.9047341120. The cubic root of 12887416 is about 234.4527237571.

The spelling of 12887416 in words is "twelve million, eight hundred eighty-seven thousand, four hundred sixteen".