647298 has 16 divisors (see below), whose sum is σ = 1438560. Its totient is φ = 215748.

The previous prime is 647293. The next prime is 647303. The reversal of 647298 is 892746.

647298 is a `hidden beast` number, since 647 + 2 + 9 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (647293) and next prime (647303).

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 647298.

It is not an unprimeable number, because it can be changed into a prime (647293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5940 + ... + 6047.

It is an arithmetic number, because the mean of its divisors is an integer number (89910).

2⁶⁴⁷²⁹⁸ is an apocalyptic number.

647298 is an abundant number, since it is smaller than the sum of its proper divisors (791262).

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

647298 is a wasteful number, since it uses less digits than its factorization.

647298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11998 (or 11992 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 647298 is about 804.5483204880. The cubic root of 647298 is about 86.5037141867.

The spelling of 647298 in words is "six hundred forty-seven thousand, two hundred ninety-eight".