1316791 has 8 divisors (see below), whose sum is σ = 1512224. Its totient is φ = 1123200.

The previous prime is 1316779. The next prime is 1316801. The reversal of 1316791 is 1976131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1316791 - 2⁹ = 1316279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1891 + ... + 2491.

It is an arithmetic number, because the mean of its divisors is an integer number (189028).

2^1316791 is an apocalyptic number.

1316791 is a deficient number, since it is larger than the sum of its proper divisors (195433).

1316791 is an equidigital number, since it uses as much as digits as its factorization.

1316791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921.

The product of its digits is 1134, while the sum is 28.

The square root of 1316791 is about 1147.5151415123. The cubic root of 1316791 is about 109.6071662691.

The spelling of 1316791 in words is "one million, three hundred sixteen thousand, seven hundred ninety-one".