860647 has 2 divisors, whose sum is σ = 860648. Its totient is φ = 860646.

The previous prime is 860641. The next prime is 860663. The reversal of 860647 is 746068.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-860647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (860641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430323 + 430324.

It is an arithmetic number, because the mean of its divisors is an integer number (430324).

2⁸⁶⁰⁶⁴⁷ is an apocalyptic number.

860647 is a deficient number, since it is larger than the sum of its proper divisors (1).

860647 is an equidigital number, since it uses as much as digits as its factorization.

860647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 860647 is about 927.7106229854. The cubic root of 860647 is about 95.1206960846.

The spelling of 860647 in words is "eight hundred sixty thousand, six hundred forty-seven".