520984 has 8 divisors (see below), whose sum is σ = 976860. Its totient is φ = 260488.

The previous prime is 520981. The next prime is 521009. The reversal of 520984 is 489025.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

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 (520981) 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 as a sum of consecutive naturals, namely, 32554 + ... + 32569.

2⁵²⁰⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

520984 is a deficient number, since it is larger than the sum of its proper divisors (455876).

520984 is a wasteful number, since it uses less digits than its factorization.

520984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65129 (or 65125 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 520984 is about 721.7922138677. The cubic root of 520984 is about 80.4652062127.

The spelling of 520984 in words is "five hundred twenty thousand, nine hundred eighty-four".