12887862 has 16 divisors (see below), whose sum is σ = 27758640. Its totient is φ = 3965472.

The previous prime is 12887827. The next prime is 12887863. The reversal of 12887862 is 26878821.

12887862 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12887863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82537 + ... + 82692.

It is an arithmetic number, because the mean of its divisors is an integer number (1734915).

Almost surely, 2^12887862 is an apocalyptic number.

12887862 is an abundant number, since it is smaller than the sum of its proper divisors (14870778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12887862 is a wasteful number, since it uses less digits than its factorization.

12887862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165247.

The product of its digits is 86016, while the sum is 42.

The square root of 12887862 is about 3589.9668522147. The cubic root of 12887862 is about 234.4554283259.

It can be divided in two parts, 128 and 87862, that added together give a triangular number (87990 = T₄₁₉).

The spelling of 12887862 in words is "twelve million, eight hundred eighty-seven thousand, eight hundred sixty-two".