679505885 has 8 divisors (see below), whose sum is σ = 815581536. Its totient is φ = 543488400.

The previous prime is 679505863. The next prime is 679505899. The reversal of 679505885 is 588505976.

679505885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 679505885 - 2⁶ = 679505821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17642 + ... + 40868.

It is an arithmetic number, because the mean of its divisors is an integer number (101947692).

Almost surely, 2^679505885 is an apocalyptic number.

It is an amenable number.

679505885 is a deficient number, since it is larger than the sum of its proper divisors (136075651).

679505885 is a wasteful number, since it uses less digits than its factorization.

679505885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29083.

The product of its (nonzero) digits is 3024000, while the sum is 53.

The square root of 679505885 is about 26067.3336764618. Note that the first 3 decimals coincide. The cubic root of 679505885 is about 879.1528887528.

Subtracting from 679505885 its reverse (588505976), we obtain a palindrome (90999909).

The spelling of 679505885 in words is "six hundred seventy-nine million, five hundred five thousand, eight hundred eighty-five".