1247316 has 48 divisors (see below), whose sum is σ = 3440640. Its totient is φ = 344160.

The previous prime is 1247303. The next prime is 1247317. The reversal of 1247316 is 6137421.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2365 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (71680).

2^1247316 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 1247316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1720320).

1247316 is an abundant number, since it is smaller than the sum of its proper divisors (2193324).

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

1247316 is a wasteful number, since it uses less digits than its factorization.

1247316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 522 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 1247316 is about 1116.8330224344. The cubic root of 1247316 is about 107.6445792165.

The spelling of 1247316 in words is "one million, two hundred forty-seven thousand, three hundred sixteen".