679459561 has 8 divisors (see below), whose sum is σ = 741543264. Its totient is φ = 617428320.

The previous prime is 679459559. The next prime is 679459567. The reversal of 679459561 is 165954976.

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 679459561 - 2¹ = 679459559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 679459499 and 679459508.

It is not an unprimeable number, because it can be changed into a prime (679459567) 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 7 ways as a sum of consecutive naturals, for example, 16986 + ... + 40588.

It is an arithmetic number, because the mean of its divisors is an integer number (92692908).

Almost surely, 2^679459561 is an apocalyptic number.

It is an amenable number.

679459561 is a deficient number, since it is larger than the sum of its proper divisors (62083703).

679459561 is a wasteful number, since it uses less digits than its factorization.

679459561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26231.

The product of its digits is 2041200, while the sum is 52.

The square root of 679459561 is about 26066.4451162793. The cubic root of 679459561 is about 879.1329101160.

The spelling of 679459561 in words is "six hundred seventy-nine million, four hundred fifty-nine thousand, five hundred sixty-one".