8644772 has 24 divisors (see below), whose sum is σ = 16863840. Its totient is φ = 3853440.

The previous prime is 8644771. The next prime is 8644781. The reversal of 8644772 is 2774468.

8644772 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (8644771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2054 + ... + 4637.

It is an arithmetic number, because the mean of its divisors is an integer number (702660).

Almost surely, 2^8644772 is an apocalyptic number.

It is an amenable number.

8644772 is a deficient number, since it is larger than the sum of its proper divisors (8219068).

8644772 is a wasteful number, since it uses less digits than its factorization.

8644772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6731 (or 6729 counting only the distinct ones).

The product of its digits is 75264, while the sum is 38.

The square root of 8644772 is about 2940.1993129718. The cubic root of 8644772 is about 205.2348844502.

The spelling of 8644772 in words is "eight million, six hundred forty-four thousand, seven hundred seventy-two".