8372785 has 4 divisors (see below), whose sum is σ = 10047348. Its totient is φ = 6698224.

The previous prime is 8372783. The next prime is 8372801. The reversal of 8372785 is 5872738.

8372785 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5872738 = 2 ⋅2936369.

It can be written as a sum of positive squares in 2 ways, for example, as 6640929 + 1731856 = 2577^2 + 1316^2 .

It is a cyclic number.

It is not a de Polignac number, because 8372785 - 2¹ = 8372783 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8372783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837274 + ... + 837283.

It is an arithmetic number, because the mean of its divisors is an integer number (2511837).

Almost surely, 2^8372785 is an apocalyptic number.

It is an amenable number.

8372785 is a deficient number, since it is larger than the sum of its proper divisors (1674563).

8372785 is a wasteful number, since it uses less digits than its factorization.

8372785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674562.

The product of its digits is 94080, while the sum is 40.

The square root of 8372785 is about 2893.5765066782. The cubic root of 8372785 is about 203.0595003014.

The spelling of 8372785 in words is "eight million, three hundred seventy-two thousand, seven hundred eighty-five".