8278394 has 8 divisors (see below), whose sum is σ = 12435060. Its totient is φ = 4133376.

The previous prime is 8278393. The next prime is 8278411. The reversal of 8278394 is 4938728.

It can be written as a sum of positive squares in 2 ways, for example, as 8265625 + 12769 = 2875^2 + 113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8278393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839 + ... + 4154.

Almost surely, 2^8278394 is an apocalyptic number.

8278394 is a deficient number, since it is larger than the sum of its proper divisors (4156666).

8278394 is a wasteful number, since it uses less digits than its factorization.

8278394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824.

The product of its digits is 96768, while the sum is 41.

The square root of 8278394 is about 2877.2198386637. The cubic root of 8278394 is about 202.2935476550.

The spelling of 8278394 in words is "eight million, two hundred seventy-eight thousand, three hundred ninety-four".