8219385 has 12 divisors (see below), whose sum is σ = 14247012. Its totient is φ = 4383648.

The previous prime is 8219357. The next prime is 8219401. The reversal of 8219385 is 5839128.

8219385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6290064 + 1929321 = 2508^2 + 1389^2 .

It is not a de Polignac number, because 8219385 - 2⁵ = 8219353 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91282 + ... + 91371.

It is an arithmetic number, because the mean of its divisors is an integer number (1187251).

Almost surely, 2^8219385 is an apocalyptic number.

It is an amenable number.

8219385 is a deficient number, since it is larger than the sum of its proper divisors (6027627).

8219385 is a wasteful number, since it uses less digits than its factorization.

8219385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182664 (or 182661 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 8219385 is about 2866.9469824188. The cubic root of 8219385 is about 201.8117466461.

The spelling of 8219385 in words is "eight million, two hundred nineteen thousand, three hundred eighty-five".