680527539 has 24 divisors (see below), whose sum is σ = 992689152. Its totient is φ = 449230320.

The previous prime is 680527501. The next prime is 680527609. The reversal of 680527539 is 935725086.

It is a happy number.

680527539 is a `hidden beast` number, since 68 + 0 + 52 + 7 + 539 = 666.

It is not a de Polignac number, because 680527539 - 2⁷ = 680527411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680527494 and 680527503.

It is not an unprimeable number, because it can be changed into a prime (680507539) 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 23 ways as a sum of consecutive naturals, for example, 422674 + ... + 424280.

It is an arithmetic number, because the mean of its divisors is an integer number (41362048).

Almost surely, 2^680527539 is an apocalyptic number.

680527539 is a deficient number, since it is larger than the sum of its proper divisors (312161613).

680527539 is a wasteful number, since it uses less digits than its factorization.

680527539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 680527539 is about 26086.9227583477. The cubic root of 680527539 is about 879.5932775267.

The spelling of 680527539 in words is "six hundred eighty million, five hundred twenty-seven thousand, five hundred thirty-nine".