12681670 has 8 divisors (see below), whose sum is σ = 22827024. Its totient is φ = 5072664.

The previous prime is 12681631. The next prime is 12681703. The reversal of 12681670 is 7618621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634074 + ... + 634093.

It is an arithmetic number, because the mean of its divisors is an integer number (2853378).

Almost surely, 2^12681670 is an apocalyptic number.

12681670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12681670 is a deficient number, since it is larger than the sum of its proper divisors (10145354).

12681670 is a wasteful number, since it uses less digits than its factorization.

12681670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268174.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12681670 is about 3561.1332465944. The cubic root of 12681670 is about 233.1983550396.

It can be divided in two parts, 126 and 81670, that added together give a square (81796 = 286²).

The spelling of 12681670 in words is "twelve million, six hundred eighty-one thousand, six hundred seventy".