578397671 has 4 divisors (see below), whose sum is σ = 579053592. Its totient is φ = 577741752.

The previous prime is 578397661. The next prime is 578397683. The reversal of 578397671 is 176793875.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 578397671 - 2¹⁸ = 578135527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578397641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326636 + ... + 328401.

It is an arithmetic number, because the mean of its divisors is an integer number (144763398).

Almost surely, 2^578397671 is an apocalyptic number.

578397671 is a deficient number, since it is larger than the sum of its proper divisors (655921).

578397671 is an equidigital number, since it uses as much as digits as its factorization.

578397671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655920.

The product of its digits is 2222640, while the sum is 53.

The square root of 578397671 is about 24049.8996047801. The cubic root of 578397671 is about 833.1864117339.

The spelling of 578397671 in words is "five hundred seventy-eight million, three hundred ninety-seven thousand, six hundred seventy-one".