647712352 has 24 divisors (see below), whose sum is σ = 1457353296. Its totient is φ = 277590912.

The previous prime is 647712349. The next prime is 647712353. The reversal of 647712352 is 253217746.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647712353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1445563 + ... + 1446010.

It is an arithmetic number, because the mean of its divisors is an integer number (60723054).

Almost surely, 2^647712352 is an apocalyptic number.

It is an amenable number.

647712352 is an abundant number, since it is smaller than the sum of its proper divisors (809640944).

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

647712352 is a wasteful number, since it uses less digits than its factorization.

647712352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891590 (or 2891582 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The square root of 647712352 is about 25450.1935552561. The cubic root of 647712352 is about 865.2216799606.

The spelling of 647712352 in words is "six hundred forty-seven million, seven hundred twelve thousand, three hundred fifty-two".