8772645 has 64 divisors (see below), whose sum is σ = 17233920. Its totient is φ = 3725568.

The previous prime is 8772619. The next prime is 8772649. The reversal of 8772645 is 5462778.

It is not a de Polignac number, because 8772645 - 2⁶ = 8772581 is a prime.

8772645 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8772649) 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 63 ways as a sum of consecutive naturals, for example, 130902 + ... + 130968.

It is an arithmetic number, because the mean of its divisors is an integer number (269280).

Almost surely, 2^8772645 is an apocalyptic number.

It is an amenable number.

8772645 is a deficient number, since it is larger than the sum of its proper divisors (8461275).

8772645 is a wasteful number, since it uses less digits than its factorization.

8772645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154.

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

The square root of 8772645 is about 2961.8651218447. The cubic root of 8772645 is about 206.2418766314.

The spelling of 8772645 in words is "eight million, seven hundred seventy-two thousand, six hundred forty-five".