12770686 has 4 divisors (see below), whose sum is σ = 19156032. Its totient is φ = 6385342.

The previous prime is 12770683. The next prime is 12770711. The reversal of 12770686 is 68607721.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12770683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3192670 + ... + 3192673.

It is an arithmetic number, because the mean of its divisors is an integer number (4789008).

Almost surely, 2^12770686 is an apocalyptic number.

12770686 is a deficient number, since it is larger than the sum of its proper divisors (6385346).

12770686 is an equidigital number, since it uses as much as digits as its factorization.

12770686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6385345.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 12770686 is about 3573.6096597138. The cubic root of 12770686 is about 233.7427103640.

It can be divided in two parts, 12770 and 686, that added together give a square (13456 = 116²).

The spelling of 12770686 in words is "twelve million, seven hundred seventy thousand, six hundred eighty-six".