539648217 has 32 divisors (see below), whose sum is σ = 837672960. Its totient is φ = 342928080.

The previous prime is 539648201. The next prime is 539648251. The reversal of 539648217 is 712846935.

539648217 is a `hidden beast` number, since 5 + 396 + 48 + 217 = 666.

It is not a de Polignac number, because 539648217 - 2⁴ = 539648201 is a prime.

It is a super-2 number, since 2×539648217² = 582440396222558178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (539648297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51268 + ... + 60890.

It is an arithmetic number, because the mean of its divisors is an integer number (26177280).

Almost surely, 2^539648217 is an apocalyptic number.

It is an amenable number.

539648217 is a deficient number, since it is larger than the sum of its proper divisors (298024743).

539648217 is a wasteful number, since it uses less digits than its factorization.

539648217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9730 (or 9724 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 539648217 is about 23230.3296791070. The cubic root of 539648217 is about 814.1484158301.

The spelling of 539648217 in words is "five hundred thirty-nine million, six hundred forty-eight thousand, two hundred seventeen".