678774359 has 2 divisors, whose sum is σ = 678774360. Its totient is φ = 678774358.

The previous prime is 678774301. The next prime is 678774401. The reversal of 678774359 is 953477876.

678774359 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-678774359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678774059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339387179 + 339387180.

It is an arithmetic number, because the mean of its divisors is an integer number (339387180).

Almost surely, 2^678774359 is an apocalyptic number.

678774359 is a deficient number, since it is larger than the sum of its proper divisors (1).

678774359 is an equidigital number, since it uses as much as digits as its factorization.

678774359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8890560, while the sum is 56.

The square root of 678774359 is about 26053.2984284140. The cubic root of 678774359 is about 878.8372897593.

The spelling of 678774359 in words is "six hundred seventy-eight million, seven hundred seventy-four thousand, three hundred fifty-nine".