12988705 has 8 divisors (see below), whose sum is σ = 15619392. Its totient is φ = 10369008.

The previous prime is 12988699. The next prime is 12988711. The reversal of 12988705 is 50788921.

12988705 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12988699) and next prime (12988711).

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 12988705 - 2¹⁵ = 12955937 is a prime.

It is a Duffinian 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, 132 + ... + 5098.

It is an arithmetic number, because the mean of its divisors is an integer number (1952424).

Almost surely, 2^12988705 is an apocalyptic number.

It is an amenable number.

12988705 is a deficient number, since it is larger than the sum of its proper divisors (2630687).

12988705 is an equidigital number, since it uses as much as digits as its factorization.

12988705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 12988705 is about 3603.9846004111. The cubic root of 12988705 is about 235.0653507702.

The spelling of 12988705 in words is "twelve million, nine hundred eighty-eight thousand, seven hundred five".