647324080 has 160 divisors (see below), whose sum is σ = 1699891200. Its totient is φ = 228953088.

The previous prime is 647324071. The next prime is 647324081. The reversal of 647324080 is 80423746.

It is not an unprimeable number, because it can be changed into a prime (647324081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5096977 + ... + 5097103.

It is an arithmetic number, because the mean of its divisors is an integer number (10624320).

Almost surely, 2^647324080 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 647324080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849945600).

647324080 is an abundant number, since it is smaller than the sum of its proper divisors (1052567120).

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

647324080 is a wasteful number, since it uses less digits than its factorization.

647324080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 647324080 is about 25442.5643361671. The cubic root of 647324080 is about 865.0487593217.

The spelling of 647324080 in words is "six hundred forty-seven million, three hundred twenty-four thousand, eighty".