12685698 has 12 divisors (see below), whose sum is σ = 27485718. Its totient is φ = 4228560.

The previous prime is 12685681. The next prime is 12685733. The reversal of 12685698 is 89658621.

It can be written as a sum of positive squares in only one way, i.e., 11309769 + 1375929 = 3363^2 + 1173^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 352363 + ... + 352398.

Almost surely, 2^12685698 is an apocalyptic number.

12685698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12685698 is an abundant number, since it is smaller than the sum of its proper divisors (14800020).

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

12685698 is a wasteful number, since it uses less digits than its factorization.

12685698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704769 (or 704766 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 12685698 is about 3561.6987520002. The cubic root of 12685698 is about 233.2230422073.

The spelling of 12685698 in words is "twelve million, six hundred eighty-five thousand, six hundred ninety-eight".