647324216 has 32 divisors (see below), whose sum is σ = 1513226880. Its totient is φ = 252204000.

The previous prime is 647324201. The next prime is 647324219. The reversal of 647324216 is 612423746.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647324219) 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 7 ways as a sum of consecutive naturals, for example, 524810 + ... + 526041.

It is an arithmetic number, because the mean of its divisors is an integer number (47288340).

Almost surely, 2^647324216 is an apocalyptic number.

It is an amenable number.

647324216 is an abundant number, since it is smaller than the sum of its proper divisors (865902664).

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

647324216 is a wasteful number, since it uses less digits than its factorization.

647324216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050875 (or 1050871 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 647324216 is about 25442.5670088535. The cubic root of 647324216 is about 865.0488199027.

The spelling of 647324216 in words is "six hundred forty-seven million, three hundred twenty-four thousand, two hundred sixteen".