520727764 has 12 divisors (see below), whose sum is σ = 932466304. Its totient is φ = 254308824.

The previous prime is 520727759. The next prime is 520727791. The reversal of 520727764 is 467727025.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1513572 + ... + 1513915.

Almost surely, 2^520727764 is an apocalyptic number.

It is an amenable number.

520727764 is a deficient number, since it is larger than the sum of its proper divisors (411738540).

520727764 is a wasteful number, since it uses less digits than its factorization.

520727764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027534 (or 3027532 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 40.

The square root of 520727764 is about 22819.4602039575. The cubic root of 520727764 is about 804.5201229271.

The spelling of 520727764 in words is "five hundred twenty million, seven hundred twenty-seven thousand, seven hundred sixty-four".