680369539 has 8 divisors (see below), whose sum is σ = 708392160. Its totient is φ = 652891200.

The previous prime is 680369527. The next prime is 680369549. The reversal of 680369539 is 935963086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 680369539 - 2¹³ = 680361347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 680369492 and 680369501.

It is not an unprimeable number, because it can be changed into a prime (680369549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133519 + ... + 138520.

It is an arithmetic number, because the mean of its divisors is an integer number (88549020).

Almost surely, 2^680369539 is an apocalyptic number.

680369539 is a deficient number, since it is larger than the sum of its proper divisors (28022621).

680369539 is a wasteful number, since it uses less digits than its factorization.

680369539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272141.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 680369539 is about 26083.8942453001. The cubic root of 680369539 is about 879.5251997064.

The spelling of 680369539 in words is "six hundred eighty million, three hundred sixty-nine thousand, five hundred thirty-nine".