1317316 has 72 divisors (see below), whose sum is σ = 3217536. Its totient is φ = 463680.

The previous prime is 1317307. The next prime is 1317317. The reversal of 1317316 is 6137131.

1317316 = T₃₃₅ + T₃₃₆ + ... + T₃₅₆.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1317317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28005 + ... + 28051.

It is an arithmetic number, because the mean of its divisors is an integer number (44688).

2^1317316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1608768).

1317316 is an abundant number, since it is smaller than the sum of its proper divisors (1900220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317316 is a wasteful number, since it uses less digits than its factorization.

1317316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 80 counting only the distinct ones).

The product of its digits is 378, while the sum is 22.

The square root of 1317316 is about 1147.7438738673. The cubic root of 1317316 is about 109.6217309992.

It can be divided in two parts, 131 and 7316, that added together give a palindrome (7447).

The spelling of 1317316 in words is "one million, three hundred seventeen thousand, three hundred sixteen".