647413760 has 120 divisors (see below), whose sum is σ = 1777282080. Its totient is φ = 221773824.

The previous prime is 647413759. The next prime is 647413763. The reversal of 647413760 is 67314746.

It is not an unprimeable number, because it can be changed into a prime (647413763) 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, 572876 + ... + 574004.

It is an arithmetic number, because the mean of its divisors is an integer number (14810684).

Almost surely, 2^647413760 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 647413760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888641040).

647413760 is an abundant number, since it is smaller than the sum of its proper divisors (1129868320).

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

647413760 is an equidigital number, since it uses as much as digits as its factorization.

647413760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 647413760 is about 25444.3266760982. The cubic root of 647413760 is about 865.0887053049.

The spelling of 647413760 in words is "six hundred forty-seven million, four hundred thirteen thousand, seven hundred sixty".