12870620 has 48 divisors (see below), whose sum is σ = 31147200. Its totient is φ = 4376064.

The previous prime is 12870617. The next prime is 12870623. The reversal of 12870620 is 2607821.

12870620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12870617) and next prime (12870623).

It is a self number, because there is not a number n which added to its sum of digits gives 12870620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12870623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20552 + ... + 21168.

It is an arithmetic number, because the mean of its divisors is an integer number (648900).

Almost surely, 2^12870620 is an apocalyptic number.

12870620 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 12870620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15573600).

12870620 is an abundant number, since it is smaller than the sum of its proper divisors (18276580).

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

12870620 is a wasteful number, since it uses less digits than its factorization.

12870620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12870620 is about 3587.5646335641. The cubic root of 12870620 is about 234.3508264253.

The spelling of 12870620 in words is "twelve million, eight hundred seventy thousand, six hundred twenty".