8686945 has 8 divisors (see below), whose sum is σ = 10442880. Its totient is φ = 6937200.

The previous prime is 8686901. The next prime is 8686961. The reversal of 8686945 is 5496868.

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

It is not a de Polignac number, because 8686945 - 2¹³ = 8678753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8686895 and 8686904.

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, 2520 + ... + 4870.

It is an arithmetic number, because the mean of its divisors is an integer number (1305360).

Almost surely, 2^8686945 is an apocalyptic number.

It is an amenable number.

8686945 is a deficient number, since it is larger than the sum of its proper divisors (1755935).

8686945 is a wasteful number, since it uses less digits than its factorization.

8686945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095.

The product of its digits is 414720, while the sum is 46.

The square root of 8686945 is about 2947.3623801630. The cubic root of 8686945 is about 205.5680852141.

The spelling of 8686945 in words is "eight million, six hundred eighty-six thousand, nine hundred forty-five".