679679693 has 32 divisors (see below), whose sum is σ = 888717312. Its totient is φ = 504028800.

The previous prime is 679679659. The next prime is 679679711. The reversal of 679679693 is 396976976.

It is not a de Polignac number, because 679679693 - 2¹² = 679675597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679679633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394073 + ... + 395793.

It is an arithmetic number, because the mean of its divisors is an integer number (27772416).

Almost surely, 2^679679693 is an apocalyptic number.

It is an amenable number.

679679693 is a deficient number, since it is larger than the sum of its proper divisors (209037619).

679679693 is a wasteful number, since it uses less digits than its factorization.

679679693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985.

The product of its digits is 23147208, while the sum is 62.

The square root of 679679693 is about 26070.6672910380. The cubic root of 679679693 is about 879.2278406564.

The spelling of 679679693 in words is "six hundred seventy-nine million, six hundred seventy-nine thousand, six hundred ninety-three".