578473729 has 4 divisors (see below), whose sum is σ = 585443376. Its totient is φ = 571504084.

The previous prime is 578473699. The next prime is 578473751. The reversal of 578473729 is 927374875.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 578473729 - 2¹⁷ = 578342657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (578476729) 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, 3484699 + ... + 3484864.

It is an arithmetic number, because the mean of its divisors is an integer number (146360844).

Almost surely, 2^578473729 is an apocalyptic number.

It is an amenable number.

578473729 is a deficient number, since it is larger than the sum of its proper divisors (6969647).

578473729 is an equidigital number, since it uses as much as digits as its factorization.

578473729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6969646.

The product of its digits is 2963520, while the sum is 52.

The square root of 578473729 is about 24051.4808068027. The cubic root of 578473729 is about 833.2229308498. Note that the first 3 decimals are identical.

The spelling of 578473729 in words is "five hundred seventy-eight million, four hundred seventy-three thousand, seven hundred twenty-nine".