12870000 has 300 divisors, whose sum is σ = 52876824. Its totient is φ = 2880000.

The previous prime is 12869993. The next prime is 12870001. The reversal of 12870000 is 7821.

It is a tau number, because it is divible by the number of its divisors (300).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12870001) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 989994 + ... + 990006.

Almost surely, 2^12870000 is an apocalyptic number.

12870000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12870000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26438412).

12870000 is an abundant number, since it is smaller than the sum of its proper divisors (40006824).

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

12870000 is a wasteful number, since it uses less digits than its factorization.

12870000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 12870000 is about 3587.4782229304. The cubic root of 12870000 is about 234.3470633368.

Adding to 12870000 its reverse (7821), we get a palindrome (12877821).

The spelling of 12870000 in words is "twelve million, eight hundred seventy thousand".