578409778 has 8 divisors (see below), whose sum is σ = 868032000. Its totient is φ = 289065780.

The previous prime is 578409763. The next prime is 578409779. The reversal of 578409778 is 877904875.

It is a happy number.

578409778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (578409779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64278 + ... + 72721.

It is an arithmetic number, because the mean of its divisors is an integer number (108504000).

Almost surely, 2^578409778 is an apocalyptic number.

578409778 is a deficient number, since it is larger than the sum of its proper divisors (289622222).

578409778 is a wasteful number, since it uses less digits than its factorization.

578409778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139112.

The product of its (nonzero) digits is 3951360, while the sum is 55.

The square root of 578409778 is about 24050.1513092953. The cubic root of 578409778 is about 833.1922251031.

The spelling of 578409778 in words is "five hundred seventy-eight million, four hundred nine thousand, seven hundred seventy-eight".