12071685 has 16 divisors (see below), whose sum is σ = 19981440. Its totient is φ = 6216000.

The previous prime is 12071681. The next prime is 12071687. The reversal of 12071685 is 58617021.

12071685 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12071685 - 2² = 12071681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13441 + ... + 14310.

It is an arithmetic number, because the mean of its divisors is an integer number (1248840).

Almost surely, 2^12071685 is an apocalyptic number.

12071685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12071685 is a deficient number, since it is larger than the sum of its proper divisors (7909755).

12071685 is a wasteful number, since it uses less digits than its factorization.

12071685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27788.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 12071685 is about 3474.4330472755. The cubic root of 12071685 is about 229.3978261826.

The spelling of 12071685 in words is "twelve million, seventy-one thousand, six hundred eighty-five".