520983772 has 12 divisors (see below), whose sum is σ = 924211456. Its totient is φ = 256923360.

The previous prime is 520983763. The next prime is 520983773. The reversal of 520983772 is 277389025.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520983773) 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, 891804 + ... + 892387.

Almost surely, 2^520983772 is an apocalyptic number.

It is an amenable number.

520983772 is a deficient number, since it is larger than the sum of its proper divisors (403227684).

520983772 is a wasteful number, since it uses less digits than its factorization.

520983772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784268 (or 1784266 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 520983772 is about 22825.0689374644. The cubic root of 520983772 is about 804.6519447465.

The spelling of 520983772 in words is "five hundred twenty million, nine hundred eighty-three thousand, seven hundred seventy-two".