520980087 has 8 divisors (see below), whose sum is σ = 697547520. Its totient is φ = 345866360.

The previous prime is 520980073. The next prime is 520980137. The reversal of 520980087 is 780089025.

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 520980087 - 2¹⁶ = 520914551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520980287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362589 + ... + 364022.

It is an arithmetic number, because the mean of its divisors is an integer number (87193440).

Almost surely, 2^520980087 is an apocalyptic number.

520980087 is a deficient number, since it is larger than the sum of its proper divisors (176567433).

520980087 is a wasteful number, since it uses less digits than its factorization.

520980087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726853.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 520980087 is about 22824.9882146738. The cubic root of 520980087 is about 804.6500475989.

The spelling of 520980087 in words is "five hundred twenty million, nine hundred eighty thousand, eighty-seven".