578397 has 4 divisors (see below), whose sum is σ = 771200. Its totient is φ = 385596.

The previous prime is 578371. The next prime is 578399. The reversal of 578397 is 793875.

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 de Polignac number, because none of the positive numbers 2^k-578397 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578399) 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 in 3 ways as a sum of consecutive naturals, for example, 96397 + ... + 96402.

It is an arithmetic number, because the mean of its divisors is an integer number (192800).

2⁵⁷⁸³⁹⁷ is an apocalyptic number.

It is an amenable number.

578397 is a deficient number, since it is larger than the sum of its proper divisors (192803).

578397 is a wasteful number, since it uses less digits than its factorization.

578397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192802.

The product of its digits is 52920, while the sum is 39.

The square root of 578397 is about 760.5241613519. The cubic root of 578397 is about 83.3186089540.

The spelling of 578397 in words is "five hundred seventy-eight thousand, three hundred ninety-seven".