12812677 has 4 divisors (see below), whose sum is σ = 12821740. Its totient is φ = 12803616.

The previous prime is 12812663. The next prime is 12812687. The reversal of 12812677 is 77621821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 77621821 = 19 ⋅4085359.

It can be written as a sum of positive squares in 2 ways, for example, as 2405601 + 10407076 = 1551^2 + 3226^2 .

It is a cyclic number.

It is not a de Polignac number, because 12812677 - 2⁷ = 12812549 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 (12812647) 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, 1902 + ... + 5407.

It is an arithmetic number, because the mean of its divisors is an integer number (3205435).

Almost surely, 2^12812677 is an apocalyptic number.

It is an amenable number.

12812677 is a deficient number, since it is larger than the sum of its proper divisors (9063).

12812677 is an equidigital number, since it uses as much as digits as its factorization.

12812677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9062.

The product of its digits is 9408, while the sum is 34.

The square root of 12812677 is about 3579.4799901662. The cubic root of 12812677 is about 233.9986181037.

The spelling of 12812677 in words is "twelve million, eight hundred twelve thousand, six hundred seventy-seven".