316447 has 4 divisors (see below), whose sum is σ = 320976. Its totient is φ = 311920.

The previous prime is 316439. The next prime is 316453. The reversal of 316447 is 744613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744613 = 107 ⋅6959.

It is a cyclic number.

It is not a de Polignac number, because 316447 - 2³ = 316439 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3⁹ + 1 + 4 + 6⁷ + 4² + 7⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316847) 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, 2158 + ... + 2299.

It is an arithmetic number, because the mean of its divisors is an integer number (80244).

2³¹⁶⁴⁴⁷ is an apocalyptic number.

316447 is a deficient number, since it is larger than the sum of its proper divisors (4529).

316447 is an equidigital number, since it uses as much as digits as its factorization.

316447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528.

The product of its digits is 2016, while the sum is 25.

The square root of 316447 is about 562.5362210560. The cubic root of 316447 is about 68.1449474454.

The spelling of 316447 in words is "three hundred sixteen thousand, four hundred forty-seven".