1296687 has 12 divisors (see below), whose sum is σ = 2011416. Its totient is φ = 740880.

The previous prime is 1296679. The next prime is 1296689. The reversal of 1296687 is 7866921.

It is not a de Polignac number, because 1296687 - 2³ = 1296679 is a prime.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 4264 + ... + 4557.

It is an arithmetic number, because the mean of its divisors is an integer number (167618).

2^1296687 is an apocalyptic number.

1296687 is a deficient number, since it is larger than the sum of its proper divisors (714729).

1296687 is an equidigital number, since it uses as much as digits as its factorization.

1296687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8838 (or 8831 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 1296687 is about 1138.7216516779. The cubic root of 1296687 is about 109.0464970102.

The spelling of 1296687 in words is "one million, two hundred ninety-six thousand, six hundred eighty-seven".