12761663 has 2 divisors, whose sum is σ = 12761664. Its totient is φ = 12761662.

The previous prime is 12761659. The next prime is 12761681. The reversal of 12761663 is 36616721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12761663 - 2² = 12761659 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12761603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6380831 + 6380832.

It is an arithmetic number, because the mean of its divisors is an integer number (6380832).

Almost surely, 2^12761663 is an apocalyptic number.

12761663 is a deficient number, since it is larger than the sum of its proper divisors (1).

12761663 is an equidigital number, since it uses as much as digits as its factorization.

12761663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 32.

The square root of 12761663 is about 3572.3469876259. The cubic root of 12761663 is about 233.6876478721.

The spelling of 12761663 in words is "twelve million, seven hundred sixty-one thousand, six hundred sixty-three".