647124016 has 80 divisors (see below), whose sum is σ = 1578113280. Its totient is φ = 249719040.

The previous prime is 647123999. The next prime is 647124017. The reversal of 647124016 is 610421746.

It is not an unprimeable number, because it can be changed into a prime (647124017) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 129370 + ... + 134278.

It is an arithmetic number, because the mean of its divisors is an integer number (19726416).

Almost surely, 2^647124016 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 647124016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789056640).

647124016 is an abundant number, since it is smaller than the sum of its proper divisors (930989264).

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

647124016 is a wasteful number, since it uses less digits than its factorization.

647124016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5042 (or 5036 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 647124016 is about 25438.6323531750. The cubic root of 647124016 is about 864.9596319161.

The spelling of 647124016 in words is "six hundred forty-seven million, one hundred twenty-four thousand, sixteen".