8644394 has 8 divisors (see below), whose sum is σ = 14145408. Its totient is φ = 3929260.

The previous prime is 8644331. The next prime is 8644397. The reversal of 8644394 is 4934468.

8644394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8644397) 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, 196442 + ... + 196485.

It is an arithmetic number, because the mean of its divisors is an integer number (1768176).

Almost surely, 2^8644394 is an apocalyptic number.

8644394 is a deficient number, since it is larger than the sum of its proper divisors (5501014).

8644394 is a wasteful number, since it uses less digits than its factorization.

8644394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392940.

The product of its digits is 82944, while the sum is 38.

The square root of 8644394 is about 2940.1350309127. The cubic root of 8644394 is about 205.2318930500.

It can be divided in two parts, 864 and 4394, that multiplied together give a cube (3796416 = 156³).

The spelling of 8644394 in words is "eight million, six hundred forty-four thousand, three hundred ninety-four".