520667671 has 8 divisors (see below), whose sum is σ = 527005440. Its totient is φ = 514357368.

The previous prime is 520667669. The next prime is 520667681. The reversal of 520667671 is 176766025.

It is a happy number.

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 520667671 - 2¹ = 520667669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520667611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32640 + ... + 45898.

It is an arithmetic number, because the mean of its divisors is an integer number (65875680).

Almost surely, 2^520667671 is an apocalyptic number.

520667671 is a deficient number, since it is larger than the sum of its proper divisors (6337769).

520667671 is a wasteful number, since it uses less digits than its factorization.

520667671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13733.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 520667671 is about 22818.1434608515. The cubic root of 520667671 is about 804.4891740059.

The spelling of 520667671 in words is "five hundred twenty million, six hundred sixty-seven thousand, six hundred seventy-one".