647702448 has 80 divisors (see below), whose sum is σ = 1848738816. Its totient is φ = 194360320.

The previous prime is 647702417. The next prime is 647702449. The reversal of 647702448 is 844207746.

647702448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×647702448² = 839036922290385408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (647702449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1513 + ... + 36023.

Almost surely, 2^647702448 is an apocalyptic number.

647702448 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647702448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (924369408).

647702448 is an abundant number, since it is smaller than the sum of its proper divisors (1201036368).

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

647702448 is a wasteful number, since it uses less digits than its factorization.

647702448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34562 (or 34556 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 42.

The square root of 647702448 is about 25449.9989783890. The cubic root of 647702448 is about 865.2172699787.

The spelling of 647702448 in words is "six hundred forty-seven million, seven hundred two thousand, four hundred forty-eight".