12887885 has 8 divisors (see below), whose sum is σ = 15491736. Its totient is φ = 10292800.

The previous prime is 12887873. The next prime is 12887893. The reversal of 12887885 is 58878821.

12887885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5148361 + 7739524 = 2269^2 + 2782^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12887885 - 2⁴ = 12887869 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 7 ways as a sum of consecutive naturals, for example, 1667 + ... + 5343.

It is an arithmetic number, because the mean of its divisors is an integer number (1936467).

Almost surely, 2^12887885 is an apocalyptic number.

It is an amenable number.

12887885 is a deficient number, since it is larger than the sum of its proper divisors (2603851).

12887885 is an equidigital number, since it uses as much as digits as its factorization.

12887885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383.

The product of its digits is 286720, while the sum is 47.

The square root of 12887885 is about 3589.9700555854. The cubic root of 12887885 is about 234.4555677975.

The spelling of 12887885 in words is "twelve million, eight hundred eighty-seven thousand, eight hundred eighty-five".