12988285 has 16 divisors (see below), whose sum is σ = 15990336. Its totient is φ = 10124928.

The previous prime is 12988277. The next prime is 12988291. The reversal of 12988285 is 58288921.

It is a cyclic number.

It is not a de Polignac number, because 12988285 - 2³ = 12988277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45754 + ... + 46036.

It is an arithmetic number, because the mean of its divisors is an integer number (999396).

Almost surely, 2^12988285 is an apocalyptic number.

It is an amenable number.

12988285 is a deficient number, since it is larger than the sum of its proper divisors (3002051).

12988285 is a wasteful number, since it uses less digits than its factorization.

12988285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its digits is 92160, while the sum is 43.

The square root of 12988285 is about 3603.9263311006. The cubic root of 12988285 is about 235.0628170686.

The spelling of 12988285 in words is "twelve million, nine hundred eighty-eight thousand, two hundred eighty-five".