506809688 has 32 divisors (see below), whose sum is σ = 1184751360. Its totient is φ = 197458080.

The previous prime is 506809687. The next prime is 506809697. The reversal of 506809688 is 886908605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506809687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410756 + ... + 411987.

It is an arithmetic number, because the mean of its divisors is an integer number (37023480).

Almost surely, 2^506809688 is an apocalyptic number.

It is an amenable number.

506809688 is an abundant number, since it is smaller than the sum of its proper divisors (677941672).

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

506809688 is a wasteful number, since it uses less digits than its factorization.

506809688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822767 (or 822763 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The square root of 506809688 is about 22512.4340754171. The cubic root of 506809688 is about 797.2875260003.

The spelling of 506809688 in words is "five hundred six million, eight hundred nine thousand, six hundred eighty-eight".