8394145 has 12 divisors (see below), whose sum is σ = 10240020. Its totient is φ = 6605664.

The previous prime is 8394121. The next prime is 8394151. The reversal of 8394145 is 5414938.

It can be written as a sum of positive squares in 2 ways, for example, as 1597696 + 6796449 = 1264^2 + 2607^2 .

It is not a de Polignac number, because 8394145 - 2⁷ = 8394017 is a prime.

Its product of digits (17280) is a multiple of the sum of its prime factors (432).

8394145 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8394145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31071 + ... + 31339.

It is an arithmetic number, because the mean of its divisors is an integer number (853335).

Almost surely, 2^8394145 is an apocalyptic number.

It is an amenable number.

8394145 is a deficient number, since it is larger than the sum of its proper divisors (1845875).

8394145 is an equidigital number, since it uses as much as digits as its factorization.

8394145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 353 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 8394145 is about 2897.2650897010. The cubic root of 8394145 is about 203.2320302212.

The spelling of 8394145 in words is "eight million, three hundred ninety-four thousand, one hundred forty-five".