8785641 has 4 divisors (see below), whose sum is σ = 11714192. Its totient is φ = 5857092.

The previous prime is 8785607. The next prime is 8785649. The reversal of 8785641 is 1465878.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8785641 - 2¹⁹ = 8261353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8785641.

It is not an unprimeable number, because it can be changed into a prime (8785649) 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, 1464271 + ... + 1464276.

It is an arithmetic number, because the mean of its divisors is an integer number (2928548).

Almost surely, 2^8785641 is an apocalyptic number.

It is an amenable number.

8785641 is a deficient number, since it is larger than the sum of its proper divisors (2928551).

8785641 is a wasteful number, since it uses less digits than its factorization.

8785641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928550.

The product of its digits is 53760, while the sum is 39.

The square root of 8785641 is about 2964.0581978092. The cubic root of 8785641 is about 206.3436702164.

The spelling of 8785641 in words is "eight million, seven hundred eighty-five thousand, six hundred forty-one".