506982645 has 40 divisors (see below), whose sum is σ = 978732216. Its totient is φ = 249588864.

The previous prime is 506982617. The next prime is 506982647. The reversal of 506982645 is 546289605.

506982645 is a `hidden beast` number, since 506 + 9 + 82 + 64 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8398404 + 498584241 = 2898^2 + 22329^2 .

It is not a de Polignac number, because 506982645 - 2⁵ = 506982613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 506982645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506982647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42882 + ... + 53411.

Almost surely, 2^506982645 is an apocalyptic number.

It is an amenable number.

506982645 is a deficient number, since it is larger than the sum of its proper divisors (471749571).

506982645 is a wasteful number, since it uses less digits than its factorization.

506982645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96323 (or 96314 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 506982645 is about 22516.2751137927. The cubic root of 506982645 is about 797.3782114380.

The spelling of 506982645 in words is "five hundred six million, nine hundred eighty-two thousand, six hundred forty-five".