12867860 has 24 divisors (see below), whose sum is σ = 27754440. Its totient is φ = 5007744.

The previous prime is 12867859. The next prime is 12867863. The reversal of 12867860 is 6876821.

It can be written as a sum of positive squares in 4 ways, for example, as 4318084 + 8549776 = 2078^2 + 2924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12867863) 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, 7955 + ... + 9434.

It is an arithmetic number, because the mean of its divisors is an integer number (1156435).

Almost surely, 2^12867860 is an apocalyptic number.

12867860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12867860 is an abundant number, since it is smaller than the sum of its proper divisors (14886580).

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

12867860 is a wasteful number, since it uses less digits than its factorization.

12867860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17435 (or 17433 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 12867860 is about 3587.1799508806. The cubic root of 12867860 is about 234.3340736835.

The spelling of 12867860 in words is "twelve million, eight hundred sixty-seven thousand, eight hundred sixty".