578779 has 2 divisors, whose sum is σ = 578780. Its totient is φ = 578778.

The previous prime is 578777. The next prime is 578789. The reversal of 578779 is 977875.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 578779 - 2¹ = 578777 is a prime.

Together with 578777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (578777) 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, 289389 + 289390.

It is an arithmetic number, because the mean of its divisors is an integer number (289390).

2⁵⁷⁸⁷⁷⁹ is an apocalyptic number.

578779 is a deficient number, since it is larger than the sum of its proper divisors (1).

578779 is an equidigital number, since it uses as much as digits as its factorization.

578779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480, while the sum is 43.

The square root of 578779 is about 760.7752624790. The cubic root of 578779 is about 83.3369473988.

It can be divided in two parts, 57 and 8779, that added together give a square (8836 = 94²).

The spelling of 578779 in words is "five hundred seventy-eight thousand, seven hundred seventy-nine".