679627905 has 64 divisors (see below), whose sum is σ = 1235761920. Its totient is φ = 315929600.

The previous prime is 679627843. The next prime is 679627909. The reversal of 679627905 is 509726976.

It is not a de Polignac number, because 679627905 - 2⁶ = 679627841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (679627909) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 827395 + ... + 828215.

It is an arithmetic number, because the mean of its divisors is an integer number (19308780).

Almost surely, 2^679627905 is an apocalyptic number.

It is an amenable number.

679627905 is a deficient number, since it is larger than the sum of its proper divisors (556134015).

679627905 is a wasteful number, since it uses less digits than its factorization.

679627905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042.

The product of its (nonzero) digits is 1428840, while the sum is 51.

The square root of 679627905 is about 26069.6740485952. The cubic root of 679627905 is about 879.2055092512.

The spelling of 679627905 in words is "six hundred seventy-nine million, six hundred twenty-seven thousand, nine hundred five".