578738 has 4 divisors (see below), whose sum is σ = 868110. Its totient is φ = 289368.

The previous prime is 578729. The next prime is 578741. The reversal of 578738 is 837875.

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

It can be written as a sum of positive squares in only one way, i.e., 458329 + 120409 = 677^2 + 347^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144683 + ... + 144686.

2⁵⁷⁸⁷³⁸ is an apocalyptic number.

578738 is a deficient number, since it is larger than the sum of its proper divisors (289372).

578738 is a wasteful number, since it uses less digits than its factorization.

578738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289371.

The product of its digits is 47040, while the sum is 38.

The square root of 578738 is about 760.7483158049. The cubic root of 578738 is about 83.3349795230.

The spelling of 578738 in words is "five hundred seventy-eight thousand, seven hundred thirty-eight".