12689170 has 16 divisors (see below), whose sum is σ = 24597720. Its totient is φ = 4685184.

The previous prime is 12689167. The next prime is 12689219. The reversal of 12689170 is 7198621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7568001 + 5121169 = 2751^2 + 2263^2 .

It is a super-2 number, since 2×12689170² = 322030070577800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48675 + ... + 48934.

Almost surely, 2^12689170 is an apocalyptic number.

12689170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12689170 is a deficient number, since it is larger than the sum of its proper divisors (11908550).

12689170 is a wasteful number, since it uses less digits than its factorization.

12689170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97629.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 12689170 is about 3562.1861265240. The cubic root of 12689170 is about 233.2443175190.

The spelling of 12689170 in words is "twelve million, six hundred eighty-nine thousand, one hundred seventy".