8445664 has 12 divisors (see below), whose sum is σ = 16627464. Its totient is φ = 4222816.

The previous prime is 8445659. The next prime is 8445677. The reversal of 8445664 is 4665448.

8445664 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131932 + ... + 131995.

It is an arithmetic number, because the mean of its divisors is an integer number (1385622).

Almost surely, 2^8445664 is an apocalyptic number.

It is an amenable number.

8445664 is a deficient number, since it is larger than the sum of its proper divisors (8181800).

8445664 is a wasteful number, since it uses less digits than its factorization.

8445664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263937 (or 263929 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 8445664 is about 2906.1424603760. The cubic root of 8445664 is about 203.6469608353.

The spelling of 8445664 in words is "eight million, four hundred forty-five thousand, six hundred sixty-four".