526804 has 6 divisors (see below), whose sum is σ = 921914. Its totient is φ = 263400.

The previous prime is 526781. The next prime is 526829. The reversal of 526804 is 408625.

It can be written as a sum of positive squares in only one way, i.e., 435600 + 91204 = 660^2 + 302^2 .

It is a congruent number.

It is an unprimeable number.

526804 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65847 + ... + 65854.

2⁵²⁶⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

526804 is a deficient number, since it is larger than the sum of its proper divisors (395110).

526804 is a wasteful number, since it uses less digits than its factorization.

526804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131705 (or 131703 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 526804 is about 725.8126480022. The cubic root of 526804 is about 80.7637274697.

The spelling of 526804 in words is "five hundred twenty-six thousand, eight hundred four".