8449686 has 24 divisors (see below), whose sum is σ = 20923344. Its totient is φ = 2414160.

The previous prime is 8449681. The next prime is 8449687. The reversal of 8449686 is 6869448.

It is a happy number.

8449686 is a `hidden beast` number, since 84 + 496 + 86 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8449681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33405 + ... + 33656.

It is an arithmetic number, because the mean of its divisors is an integer number (871806).

Almost surely, 2^8449686 is an apocalyptic number.

8449686 is an abundant number, since it is smaller than the sum of its proper divisors (12473658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8449686 is a wasteful number, since it uses less digits than its factorization.

8449686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67076 (or 67073 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 8449686 is about 2906.8343606061. The cubic root of 8449686 is about 203.6792826710.

It can be divided in two parts, 84 and 49686, that added together give a triangular number (49770 = T₃₁₅).

The spelling of 8449686 in words is "eight million, four hundred forty-nine thousand, six hundred eighty-six".