647341312 has 36 divisors (see below), whose sum is σ = 1295372736. Its totient is φ = 322864640.

The previous prime is 647341309. The next prime is 647341327. The reversal of 647341312 is 213143746.

It is a congruent number.

It is an unprimeable number.

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, 107403 + ... + 113269.

It is an arithmetic number, because the mean of its divisors is an integer number (35982576).

Almost surely, 2^647341312 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 647341312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647686368).

647341312 is an abundant number, since it is smaller than the sum of its proper divisors (648031424).

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

647341312 is an equidigital number, since it uses as much as digits as its factorization.

647341312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6314 (or 6300 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 647341312 is about 25442.9029790234. The cubic root of 647341312 is about 865.0564352233.

The spelling of 647341312 in words is "six hundred forty-seven million, three hundred forty-one thousand, three hundred twelve".