520886686 has 8 divisors (see below), whose sum is σ = 794138904. Its totient is φ = 256173720.

The previous prime is 520886683. The next prime is 520886689. The reversal of 520886686 is 686688025.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (520886683) and next prime (520886689).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520886683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2134660 + ... + 2134903.

It is an arithmetic number, because the mean of its divisors is an integer number (99267363).

Almost surely, 2^520886686 is an apocalyptic number.

520886686 is a deficient number, since it is larger than the sum of its proper divisors (273252218).

520886686 is a wasteful number, since it uses less digits than its factorization.

520886686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269626.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The square root of 520886686 is about 22822.9420978103. The cubic root of 520886686 is about 804.6019589978.

The spelling of 520886686 in words is "five hundred twenty million, eight hundred eighty-six thousand, six hundred eighty-six".