678593263 has 2 divisors, whose sum is σ = 678593264. Its totient is φ = 678593262.

The previous prime is 678593261. The next prime is 678593269. The reversal of 678593263 is 362395876.

It is a happy number.

678593263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 678593263 - 2¹ = 678593261 is a prime.

Together with 678593261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678593261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339296631 + 339296632.

It is an arithmetic number, because the mean of its divisors is an integer number (339296632).

Almost surely, 2^678593263 is an apocalyptic number.

678593263 is a deficient number, since it is larger than the sum of its proper divisors (1).

678593263 is an equidigital number, since it uses as much as digits as its factorization.

678593263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 49.

The square root of 678593263 is about 26049.8227057306. The cubic root of 678593263 is about 878.7591253090.

The spelling of 678593263 in words is "six hundred seventy-eight million, five hundred ninety-three thousand, two hundred sixty-three".