647700352 has 64 divisors (see below), whose sum is σ = 1395727200. Its totient is φ = 297621504.

The previous prime is 647700349. The next prime is 647700353. The reversal of 647700352 is 253007746.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647700353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446893 + ... + 448339.

Almost surely, 2^647700352 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 647700352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697863600).

647700352 is an abundant number, since it is smaller than the sum of its proper divisors (748026848).

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

647700352 is a wasteful number, since it uses less digits than its factorization.

647700352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743 (or 1731 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 647700352 is about 25449.9577995721. The cubic root of 647700352 is about 865.2163366812.

The spelling of 647700352 in words is "six hundred forty-seven million, seven hundred thousand, three hundred fifty-two".