520671 has 8 divisors (see below), whose sum is σ = 698544. Its totient is φ = 344960.

The previous prime is 520649. The next prime is 520679. The reversal of 520671 is 176025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520671 - 2⁶ = 520607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (87318).

2⁵²⁰⁶⁷¹ is an apocalyptic number.

520671 is a deficient number, since it is larger than the sum of its proper divisors (177873).

520671 is a wasteful number, since it uses less digits than its factorization.

520671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 520671 is about 721.5753598897. The cubic root of 520671 is about 80.4490888560.

Adding to 520671 its reverse (176025), we get a palindrome (696696).

The spelling of 520671 in words is "five hundred twenty thousand, six hundred seventy-one".