12698761 has 2 divisors, whose sum is σ = 12698762. Its totient is φ = 12698760.

The previous prime is 12698759. The next prime is 12698771. The reversal of 12698761 is 16789621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12145225 + 553536 = 3485^2 + 744^2 .

It is an emirp because it is prime and its reverse (16789621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12698761 - 2¹ = 12698759 is a prime.

It is a super-2 number, since 2×12698761² = 322517061870242, which contains 22 as substring.

Together with 12698759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12698731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6349380 + 6349381.

It is an arithmetic number, because the mean of its divisors is an integer number (6349381).

Almost surely, 2^12698761 is an apocalyptic number.

It is an amenable number.

12698761 is a deficient number, since it is larger than the sum of its proper divisors (1).

12698761 is an equidigital number, since it uses as much as digits as its factorization.

12698761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 12698761 is about 3563.5320961091. The cubic root of 12698761 is about 233.3030679566.

The spelling of 12698761 in words is "twelve million, six hundred ninety-eight thousand, seven hundred sixty-one".