8645772 has 12 divisors (see below), whose sum is σ = 20173496. Its totient is φ = 2881920.

The previous prime is 8645761. The next prime is 8645773. The reversal of 8645772 is 2775468.

8645772 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8645772.

It is not an unprimeable number, because it can be changed into a prime (8645773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360229 + ... + 360252.

Almost surely, 2^8645772 is an apocalyptic number.

It is an amenable number.

8645772 is an abundant number, since it is smaller than the sum of its proper divisors (11527724).

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

8645772 is a wasteful number, since it uses less digits than its factorization.

8645772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720488 (or 720486 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 8645772 is about 2940.3693645527. The cubic root of 8645772 is about 205.2427977868.

The spelling of 8645772 in words is "eight million, six hundred forty-five thousand, seven hundred seventy-two".