8730645 has 32 divisors (see below), whose sum is σ = 17418240. Its totient is φ = 3627840.

The previous prime is 8730629. The next prime is 8730649. The reversal of 8730645 is 5460378.

8730645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8730645 - 2⁴ = 8730629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8730649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2625 + ... + 4934.

It is an arithmetic number, because the mean of its divisors is an integer number (544320).

Almost surely, 2^8730645 is an apocalyptic number.

It is an amenable number.

8730645 is a deficient number, since it is larger than the sum of its proper divisors (8687595).

8730645 is a wasteful number, since it uses less digits than its factorization.

8730645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7585.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 8730645 is about 2954.7664882356. The cubic root of 8730645 is about 205.9122147722.

The spelling of 8730645 in words is "eight million, seven hundred thirty thousand, six hundred forty-five".