1316447 has 4 divisors (see below), whose sum is σ = 1436136. Its totient is φ = 1196760.

The previous prime is 1316437. The next prime is 1316479. The reversal of 1316447 is 7446131.

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 1316447 - 2⁴ = 1316431 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 (1316407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59828 + ... + 59849.

It is an arithmetic number, because the mean of its divisors is an integer number (359034).

2^1316447 is an apocalyptic number.

1316447 is a deficient number, since it is larger than the sum of its proper divisors (119689).

1316447 is a wasteful number, since it uses less digits than its factorization.

1316447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119688.

The product of its digits is 2016, while the sum is 26.

The square root of 1316447 is about 1147.3652426320. The cubic root of 1316447 is about 109.5976208037.

The spelling of 1316447 in words is "one million, three hundred sixteen thousand, four hundred forty-seven".