12698663 has 2 divisors, whose sum is σ = 12698664. Its totient is φ = 12698662.

The previous prime is 12698657. The next prime is 12698681. The reversal of 12698663 is 36689621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12698663 - 2²² = 8504359 is a prime.

It is a super-2 number, since 2×12698663² = 322512083975138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12698663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12698263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6349331 + 6349332.

It is an arithmetic number, because the mean of its divisors is an integer number (6349332).

Almost surely, 2^12698663 is an apocalyptic number.

12698663 is a deficient number, since it is larger than the sum of its proper divisors (1).

12698663 is an equidigital number, since it uses as much as digits as its factorization.

12698663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 12698663 is about 3563.5183456803. The cubic root of 12698663 is about 233.3024677993.

It can be divided in two parts, 126 and 98663, that added together give a palindrome (98789).

The spelling of 12698663 in words is "twelve million, six hundred ninety-eight thousand, six hundred sixty-three".