578431 has 4 divisors (see below), whose sum is σ = 661072. Its totient is φ = 495792.

The previous prime is 578419. The next prime is 578441. The reversal of 578431 is 134875.

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 578431 - 2⁵ = 578399 is a prime.

It is a super-2 number, since 2×578431² = 669164843522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 578431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41310 + ... + 41323.

It is an arithmetic number, because the mean of its divisors is an integer number (165268).

2⁵⁷⁸⁴³¹ is an apocalyptic number.

578431 is a deficient number, since it is larger than the sum of its proper divisors (82641).

578431 is an equidigital number, since it uses as much as digits as its factorization.

578431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82640.

The product of its digits is 3360, while the sum is 28.

The square root of 578431 is about 760.5465140279. The cubic root of 578431 is about 83.3202414989.

Subtracting from 578431 its reverse (134875), we obtain a square (443556 = 666²).

The spelling of 578431 in words is "five hundred seventy-eight thousand, four hundred thirty-one".