798647 has 2 divisors, whose sum is σ = 798648. Its totient is φ = 798646.

The previous prime is 798641. The next prime is 798649. The reversal of 798647 is 746897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 798647 - 2¹² = 794551 is a prime.

Together with 798649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (798641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399323 + 399324.

It is an arithmetic number, because the mean of its divisors is an integer number (399324).

2⁷⁹⁸⁶⁴⁷ is an apocalyptic number.

798647 is a deficient number, since it is larger than the sum of its proper divisors (1).

798647 is an equidigital number, since it uses as much as digits as its factorization.

798647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 41.

The square root of 798647 is about 893.6705209416. The cubic root of 798647 is about 92.7794132272.

The spelling of 798647 in words is "seven hundred ninety-eight thousand, six hundred forty-seven".