647041982 has 8 divisors (see below), whose sum is σ = 1001871552. Its totient is φ = 313084800.

The previous prime is 647041973. The next prime is 647041999. The reversal of 647041982 is 289140746.

647041982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5218019 + ... + 5218142.

It is an arithmetic number, because the mean of its divisors is an integer number (125233944).

Almost surely, 2^647041982 is an apocalyptic number.

647041982 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

647041982 is a deficient number, since it is larger than the sum of its proper divisors (354829570).

647041982 is a wasteful number, since it uses less digits than its factorization.

647041982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10436194.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 647041982 is about 25437.0199119315. The cubic root of 647041982 is about 864.9230809124.

The spelling of 647041982 in words is "six hundred forty-seven million, forty-one thousand, nine hundred eighty-two".