8368644 has 12 divisors (see below), whose sum is σ = 19526864. Its totient is φ = 2789544.

The previous prime is 8368643. The next prime is 8368669. The reversal of 8368644 is 4468638.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8368643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348682 + ... + 348705.

Almost surely, 2^8368644 is an apocalyptic number.

It is an amenable number.

8368644 is an abundant number, since it is smaller than the sum of its proper divisors (11158220).

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

8368644 is a wasteful number, since it uses less digits than its factorization.

8368644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697394 (or 697392 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 8368644 is about 2892.8608677225. The cubic root of 8368644 is about 203.0260184888.

The spelling of 8368644 in words is "eight million, three hundred sixty-eight thousand, six hundred forty-four".