8945644 has 12 divisors (see below), whose sum is σ = 15853600. Its totient is φ = 4416048.

The previous prime is 8945641. The next prime is 8945663. The reversal of 8945644 is 4465498.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 8945597 and 8945606.

It is not an unprimeable number, because it can be changed into a prime (8945641) 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, 13839 + ... + 14470.

Almost surely, 2^8945644 is an apocalyptic number.

It is an amenable number.

8945644 is a deficient number, since it is larger than the sum of its proper divisors (6907956).

8945644 is a wasteful number, since it uses less digits than its factorization.

8945644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28392 (or 28390 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 8945644 is about 2990.9269466171. The cubic root of 8945644 is about 207.5887770312.

The spelling of 8945644 in words is "eight million, nine hundred forty-five thousand, six hundred forty-four".