676891 has 2 divisors, whose sum is σ = 676892. Its totient is φ = 676890.

The previous prime is 676883. The next prime is 676903. The reversal of 676891 is 198676.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 676891 - 2³ = 676883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 676891.

It is not a weakly prime, because it can be changed into another prime (676861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338445 + 338446.

It is an arithmetic number, because the mean of its divisors is an integer number (338446).

2⁶⁷⁶⁸⁹¹ is an apocalyptic number.

676891 is a deficient number, since it is larger than the sum of its proper divisors (1).

676891 is an equidigital number, since it uses as much as digits as its factorization.

676891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 676891 is about 822.7338573318. The cubic root of 676891 is about 87.8023715855.

It can be divided in two parts, 6768 and 91, that added together give a cube (6859 = 19³).

The spelling of 676891 in words is "six hundred seventy-six thousand, eight hundred ninety-one".