12679663 has 2 divisors, whose sum is σ = 12679664. Its totient is φ = 12679662.

The previous prime is 12679633. The next prime is 12679673. The reversal of 12679663 is 36697621.

It is a strong prime.

It is an emirp because it is prime and its reverse (36697621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12679663 - 2²¹ = 10582511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12679633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6339831 + 6339832.

It is an arithmetic number, because the mean of its divisors is an integer number (6339832).

Almost surely, 2^12679663 is an apocalyptic number.

12679663 is a deficient number, since it is larger than the sum of its proper divisors (1).

12679663 is an equidigital number, since it uses as much as digits as its factorization.

12679663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 12679663 is about 3560.8514431242. The cubic root of 12679663 is about 233.1860524067.

The spelling of 12679663 in words is "twelve million, six hundred seventy-nine thousand, six hundred sixty-three".