1296688 has 10 divisors (see below), whose sum is σ = 2512364. Its totient is φ = 648336.

The previous prime is 1296679. The next prime is 1296689. The reversal of 1296688 is 8866921.

It is a super-3 number, since 3×1296688³ = 6540752712333398016, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1296688.

It is not an unprimeable number, because it can be changed into a prime (1296689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40506 + ... + 40537.

2^1296688 is an apocalyptic number.

It is an amenable number.

1296688 is a deficient number, since it is larger than the sum of its proper divisors (1215676).

1296688 is an equidigital number, since it uses as much as digits as its factorization.

1296688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81051 (or 81045 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 1296688 is about 1138.7220907667. The cubic root of 1296688 is about 109.0465250423.

The spelling of 1296688 in words is "one million, two hundred ninety-six thousand, six hundred eighty-eight".