12851693 has 4 divisors (see below), whose sum is σ = 12872028. Its totient is φ = 12831360.

The previous prime is 12851681. The next prime is 12851717. The reversal of 12851693 is 39615821.

12851693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8779369 + 4072324 = 2963^2 + 2018^2 .

It is a cyclic number.

It is not a de Polignac number, because 12851693 - 2¹⁶ = 12786157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12851093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9188 + ... + 10493.

It is an arithmetic number, because the mean of its divisors is an integer number (3218007).

Almost surely, 2^12851693 is an apocalyptic number.

It is an amenable number.

12851693 is a deficient number, since it is larger than the sum of its proper divisors (20335).

12851693 is an equidigital number, since it uses as much as digits as its factorization.

12851693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20334.

The product of its digits is 12960, while the sum is 35.

The square root of 12851693 is about 3584.9258011847. The cubic root of 12851693 is about 234.2358945334.

The spelling of 12851693 in words is "twelve million, eight hundred fifty-one thousand, six hundred ninety-three".