12705860 has 12 divisors (see below), whose sum is σ = 26682348. Its totient is φ = 5082336.

The previous prime is 12705841. The next prime is 12705863. The reversal of 12705860 is 6850721.

It can be written as a sum of positive squares in 2 ways, for example, as 5914624 + 6791236 = 2432^2 + 2606^2 .

It is a super-2 number, since 2×12705860² = 322877756679200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12705863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317627 + ... + 317666.

It is an arithmetic number, because the mean of its divisors is an integer number (2223529).

Almost surely, 2^12705860 is an apocalyptic number.

12705860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12705860 is an abundant number, since it is smaller than the sum of its proper divisors (13976488).

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

12705860 is a wasteful number, since it uses less digits than its factorization.

12705860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635302 (or 635300 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 12705860 is about 3564.5280192474. The cubic root of 12705860 is about 233.3465344005.

The spelling of 12705860 in words is "twelve million, seven hundred five thousand, eight hundred sixty".