12685610 has 24 divisors (see below), whose sum is σ = 26563140. Its totient is φ = 4349184.

The previous prime is 12685609. The next prime is 12685619. The reversal of 12685610 is 1658621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12103441 + 582169 = 3479^2 + 763^2 .

It is not an unprimeable number, because it can be changed into a prime (12685619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12455 + ... + 13434.

Almost surely, 2^12685610 is an apocalyptic number.

12685610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12685610 is an abundant number, since it is smaller than the sum of its proper divisors (13877530).

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

12685610 is a wasteful number, since it uses less digits than its factorization.

12685610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25910 (or 25903 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12685610 is about 3561.6863983231. The cubic root of 12685610 is about 233.2225029208. Note that the first 3 decimals are identical.

The spelling of 12685610 in words is "twelve million, six hundred eighty-five thousand, six hundred ten".