679797885 has 16 divisors (see below), whose sum is σ = 1171344384. Its totient is φ = 334669632.

The previous prime is 679797871. The next prime is 679797889. The reversal of 679797885 is 588797976.

It is not a de Polignac number, because 679797885 - 2⁷ = 679797757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679797889) 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, 1742877 + ... + 1743266.

It is an arithmetic number, because the mean of its divisors is an integer number (73209024).

Almost surely, 2^679797885 is an apocalyptic number.

679797885 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

679797885 is a deficient number, since it is larger than the sum of its proper divisors (491546499).

679797885 is a wasteful number, since it uses less digits than its factorization.

679797885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486164.

The product of its digits is 53343360, while the sum is 66.

The square root of 679797885 is about 26072.9339545821. The cubic root of 679797885 is about 879.2788017562.

Subtracting from 679797885 its reverse (588797976), we obtain a palindrome (90999909).

The spelling of 679797885 in words is "six hundred seventy-nine million, seven hundred ninety-seven thousand, eight hundred eighty-five".