8679905 has 16 divisors (see below), whose sum is σ = 11494224. Its totient is φ = 6251520.

The previous prime is 8679899. The next prime is 8679943. The reversal of 8679905 is 5099768.

It can be written as a sum of positive squares in 8 ways, for example, as 1018081 + 7661824 = 1009^2 + 2768^2 .

It is not a de Polignac number, because 8679905 - 2⁶ = 8679841 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1037 + ... + 4293.

It is an arithmetic number, because the mean of its divisors is an integer number (718389).

Almost surely, 2^8679905 is an apocalyptic number.

It is an amenable number.

8679905 is a deficient number, since it is larger than the sum of its proper divisors (2814319).

8679905 is a wasteful number, since it uses less digits than its factorization.

8679905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 8679905 is about 2946.1678499366. The cubic root of 8679905 is about 205.5125386271.

Subtracting from 8679905 its sum of digits (44), we obtain a triangular number (8679861 = T₄₁₆₆).

The spelling of 8679905 in words is "eight million, six hundred seventy-nine thousand, nine hundred five".