12871610 has 16 divisors (see below), whose sum is σ = 23549832. Its totient is φ = 5064000.

The previous prime is 12871591. The next prime is 12871613. The reversal of 12871610 is 1617821.

It can be written as a sum of positive squares in 4 ways, for example, as 4879681 + 7991929 = 2209^2 + 2827^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12871610.

It is not an unprimeable number, because it can be changed into a prime (12871613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9941 + ... + 11160.

Almost surely, 2^12871610 is an apocalyptic number.

12871610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12871610 is a deficient number, since it is larger than the sum of its proper divisors (10678222).

12871610 is a wasteful number, since it uses less digits than its factorization.

12871610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21169.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 12871610 is about 3587.7026075192. The cubic root of 12871610 is about 234.3568349774.

The spelling of 12871610 in words is "twelve million, eight hundred seventy-one thousand, six hundred ten".