506817928 has 8 divisors (see below), whose sum is σ = 950283630. Its totient is φ = 253408960.

The previous prime is 506817911. The next prime is 506817947. The reversal of 506817928 is 829718605.

It can be written as a sum of positive squares in only one way, i.e., 440916004 + 65901924 = 20998^2 + 8118^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31676113 + ... + 31676128.

Almost surely, 2^506817928 is an apocalyptic number.

506817928 is the 12034-th centered heptagonal number.

It is an amenable number.

506817928 is a deficient number, since it is larger than the sum of its proper divisors (443465702).

506817928 is a wasteful number, since it uses less digits than its factorization.

506817928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63352247 (or 63352243 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 506817928 is about 22512.6170846483. The cubic root of 506817928 is about 797.2918468948.

The spelling of 506817928 in words is "five hundred six million, eight hundred seventeen thousand, nine hundred twenty-eight".