678833 has 2 divisors, whose sum is σ = 678834. Its totient is φ = 678832.

The previous prime is 678829. The next prime is 678859. The reversal of 678833 is 338876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 351649 + 327184 = 593^2 + 572^2 .

It is a cyclic number.

It is not a de Polignac number, because 678833 - 2² = 678829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 678793 and 678802.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 678833.

It is not a weakly prime, because it can be changed into another prime (678823) 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, 339416 + 339417.

It is an arithmetic number, because the mean of its divisors is an integer number (339417).

2⁶⁷⁸⁸³³ is an apocalyptic number.

It is an amenable number.

678833 is a deficient number, since it is larger than the sum of its proper divisors (1).

678833 is an equidigital number, since it uses as much as digits as its factorization.

678833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 678833 is about 823.9132235861. The cubic root of 678833 is about 87.8862597341.

The spelling of 678833 in words is "six hundred seventy-eight thousand, eight hundred thirty-three".