867947 has 2 divisors, whose sum is σ = 867948. Its totient is φ = 867946.

The previous prime is 867943. The next prime is 867959. The reversal of 867947 is 749768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 867947 - 2² = 867943 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 867947.

It is not a weakly prime, because it can be changed into another prime (867943) 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, 433973 + 433974.

It is an arithmetic number, because the mean of its divisors is an integer number (433974).

2⁸⁶⁷⁹⁴⁷ is an apocalyptic number.

867947 is a deficient number, since it is larger than the sum of its proper divisors (1).

867947 is an equidigital number, since it uses as much as digits as its factorization.

867947 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 867947 is about 931.6367317791. The cubic root of 867947 is about 95.3888768974.

The spelling of 867947 in words is "eight hundred sixty-seven thousand, nine hundred forty-seven".