679516005 has 32 divisors (see below), whose sum is σ = 1248473088. Its totient is φ = 309153600.

The previous prime is 679515983. The next prime is 679516009. The reversal of 679516005 is 500615976.

It is not a de Polignac number, because 679516005 - 2⁹ = 679515493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679516009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6820 + ... + 37490.

It is an arithmetic number, because the mean of its divisors is an integer number (39014784).

Almost surely, 2^679516005 is an apocalyptic number.

It is an amenable number.

679516005 is a deficient number, since it is larger than the sum of its proper divisors (568957083).

679516005 is a wasteful number, since it uses less digits than its factorization.

679516005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30897.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 679516005 is about 26067.5277884191. The cubic root of 679516005 is about 879.1572531904.

The spelling of 679516005 in words is "six hundred seventy-nine million, five hundred sixteen thousand, five".