1296671 has 4 divisors (see below), whose sum is σ = 1353072. Its totient is φ = 1240272.

The previous prime is 1296649. The next prime is 1296679. The reversal of 1296671 is 1766921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1296671 - 2¹⁰ = 1295647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28166 + ... + 28211.

It is an arithmetic number, because the mean of its divisors is an integer number (338268).

2^1296671 is an apocalyptic number.

1296671 is a deficient number, since it is larger than the sum of its proper divisors (56401).

1296671 is an equidigital number, since it uses as much as digits as its factorization.

1296671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56400.

The product of its digits is 4536, while the sum is 32.

The square root of 1296671 is about 1138.7146262343. The cubic root of 1296671 is about 109.0460484951.

The spelling of 1296671 in words is "one million, two hundred ninety-six thousand, six hundred seventy-one".