509683447 has 12 divisors (see below), whose sum is σ = 638505336. Its totient is φ = 403265520.

The previous prime is 509683441. The next prime is 509683451. The reversal of 509683447 is 744386905.

It is not a de Polignac number, because 509683447 - 2⁷ = 509683319 is a prime.

It is a super-2 number, since 2×509683447² = 519554432291603618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 509683397 and 509683406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509683441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399429 + ... + 400702.

It is an arithmetic number, because the mean of its divisors is an integer number (53208778).

Almost surely, 2^509683447 is an apocalyptic number.

509683447 is a deficient number, since it is larger than the sum of its proper divisors (128821889).

509683447 is a wasteful number, since it uses less digits than its factorization.

509683447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800158 (or 800151 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 509683447 is about 22576.1698921673. The cubic root of 509683447 is about 798.7916377239.

The spelling of 509683447 in words is "five hundred nine million, six hundred eighty-three thousand, four hundred forty-seven".