522447 has 4 divisors (see below), whose sum is σ = 696600. Its totient is φ = 348296.

The previous prime is 522439. The next prime is 522449. The reversal of 522447 is 744225.

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 522447 - 2³ = 522439 is a prime.

It is a D-number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87072 + ... + 87077.

It is an arithmetic number, because the mean of its divisors is an integer number (174150).

2⁵²²⁴⁴⁷ is an apocalyptic number.

522447 is a deficient number, since it is larger than the sum of its proper divisors (174153).

522447 is a wasteful number, since it uses less digits than its factorization.

522447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174152.

The product of its digits is 2240, while the sum is 24.

The square root of 522447 is about 722.8049529437. The cubic root of 522447 is about 80.5404552134.

It can be divided in two parts, 522 and 447, that added together give a palindrome (969).

The spelling of 522447 in words is "five hundred twenty-two thousand, four hundred forty-seven".