679340085 has 16 divisors (see below), whose sum is σ = 1090791744. Its totient is φ = 361032192.

The previous prime is 679340083. The next prime is 679340089. The reversal of 679340085 is 580043976.

It is a happy number.

It is not a de Polignac number, because 679340085 - 2¹ = 679340083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679340083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75772 + ... + 84261.

It is an arithmetic number, because the mean of its divisors is an integer number (68174484).

Almost surely, 2^679340085 is an apocalyptic number.

It is an amenable number.

679340085 is a deficient number, since it is larger than the sum of its proper divisors (411451659).

679340085 is a wasteful number, since it uses less digits than its factorization.

679340085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160324.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 679340085 is about 26064.1532569159. The cubic root of 679340085 is about 879.0813782581.

The spelling of 679340085 in words is "six hundred seventy-nine million, three hundred forty thousand, eighty-five".