647353752 has 32 divisors (see below), whose sum is σ = 1619360880. Its totient is φ = 215654400.

The previous prime is 647353741. The next prime is 647353757. The reversal of 647353752 is 257353746.

647353752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647353757) 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, 37752 + ... + 52152.

Almost surely, 2^647353752 is an apocalyptic number.

It is an amenable number.

647353752 is an abundant number, since it is smaller than the sum of its proper divisors (972007128).

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

647353752 is a wasteful number, since it uses less digits than its factorization.

647353752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16283 (or 16279 counting only the distinct ones).

The product of its digits is 529200, while the sum is 42.

The square root of 647353752 is about 25443.1474468078. The cubic root of 647353752 is about 865.0619764697.

The spelling of 647353752 in words is "six hundred forty-seven million, three hundred fifty-three thousand, seven hundred fifty-two".