647433436 has 48 divisors (see below), whose sum is σ = 1287680800. Its totient is φ = 282362112.

The previous prime is 647433433. The next prime is 647433461. The reversal of 647433436 is 634334746.

647433436 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 (647433433) 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, 605110 + ... + 606178.

Almost surely, 2^647433436 is an apocalyptic number.

It is an amenable number.

647433436 is a deficient number, since it is larger than the sum of its proper divisors (640247364).

647433436 is a wasteful number, since it uses less digits than its factorization.

647433436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718 (or 1716 counting only the distinct ones).

The product of its digits is 435456, while the sum is 40.

The square root of 647433436 is about 25444.7133212383. The cubic root of 647433436 is about 865.0974690528.

The spelling of 647433436 in words is "six hundred forty-seven million, four hundred thirty-three thousand, four hundred thirty-six".