520313986 has 8 divisors (see below), whose sum is σ = 791463744. Its totient is φ = 256492740.

The previous prime is 520313953. The next prime is 520313999. The reversal of 520313986 is 689313025.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1831950 + ... + 1832233.

It is an arithmetic number, because the mean of its divisors is an integer number (98932968).

Almost surely, 2^520313986 is an apocalyptic number.

520313986 is a deficient number, since it is larger than the sum of its proper divisors (271149758).

520313986 is a wasteful number, since it uses less digits than its factorization.

520313986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3664256.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 520313986 is about 22810.3920615144. The cubic root of 520313986 is about 804.3069719211.

The spelling of 520313986 in words is "five hundred twenty million, three hundred thirteen thousand, nine hundred eighty-six".