578378 has 4 divisors (see below), whose sum is σ = 867570. Its totient is φ = 289188.

The previous prime is 578371. The next prime is 578399. The reversal of 578378 is 873875.

578378 is nontrivially palindromic in base 8.

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., 573049 + 5329 = 757^2 + 73^2 .

It is a super-2 number, since 2×578378² = 669042221768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (578371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144593 + ... + 144596.

2⁵⁷⁸³⁷⁸ is an apocalyptic number.

578378 is a deficient number, since it is larger than the sum of its proper divisors (289192).

578378 is a wasteful number, since it uses less digits than its factorization.

578378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289191.

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

The square root of 578378 is about 760.5116698644. The cubic root of 578378 is about 83.3176966217.

The spelling of 578378 in words is "five hundred seventy-eight thousand, three hundred seventy-eight".