505787912 has 16 divisors (see below), whose sum is σ = 1083831360. Its totient is φ = 216766224.

The previous prime is 505787911. The next prime is 505787951. The reversal of 505787912 is 219787505.

It is a super-3 number, since 3×505787912³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (505787911) by changing a digit.

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, 4515908 + ... + 4516019.

It is an arithmetic number, because the mean of its divisors is an integer number (67739460).

Almost surely, 2^505787912 is an apocalyptic number.

It is an amenable number.

505787912 is an abundant number, since it is smaller than the sum of its proper divisors (578043448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505787912 is a wasteful number, since it uses less digits than its factorization.

505787912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9031940 (or 9031936 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 44.

The square root of 505787912 is about 22489.7290334944. The cubic root of 505787912 is about 796.7513633063.

The spelling of 505787912 in words is "five hundred five million, seven hundred eighty-seven thousand, nine hundred twelve".