8686472 has 8 divisors (see below), whose sum is σ = 16287150. Its totient is φ = 4343232.

The previous prime is 8686471. The next prime is 8686487. The reversal of 8686472 is 2746868.

It can be written as a sum of positive squares in only one way, i.e., 8099716 + 586756 = 2846^2 + 766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (8686471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542897 + ... + 542912.

Almost surely, 2^8686472 is an apocalyptic number.

It is an amenable number.

8686472 is a deficient number, since it is larger than the sum of its proper divisors (7600678).

8686472 is a wasteful number, since it uses less digits than its factorization.

8686472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085815 (or 1085811 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 8686472 is about 2947.2821378348. The cubic root of 8686472 is about 205.5643541184.

The spelling of 8686472 in words is "eight million, six hundred eighty-six thousand, four hundred seventy-two".