12816677 has 2 divisors, whose sum is σ = 12816678. Its totient is φ = 12816676.

The previous prime is 12816667. The next prime is 12816679. The reversal of 12816677 is 77661821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12630916 + 185761 = 3554^2 + 431^2 .

It is a cyclic number.

It is not a de Polignac number, because 12816677 - 2⁸ = 12816421 is a prime.

Together with 12816679, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12816677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12816679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6408338 + 6408339.

It is an arithmetic number, because the mean of its divisors is an integer number (6408339).

Almost surely, 2^12816677 is an apocalyptic number.

It is an amenable number.

12816677 is a deficient number, since it is larger than the sum of its proper divisors (1).

12816677 is an equidigital number, since it uses as much as digits as its factorization.

12816677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 38.

The square root of 12816677 is about 3580.0386869418. The cubic root of 12816677 is about 234.0229663094.

The spelling of 12816677 in words is "twelve million, eight hundred sixteen thousand, six hundred seventy-seven".