8197278 has 8 divisors (see below), whose sum is σ = 16394568. Its totient is φ = 2732424.

The previous prime is 8197271. The next prime is 8197279. The reversal of 8197278 is 8727918.

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

8197278 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8197271) 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, 683101 + ... + 683112.

It is an arithmetic number, because the mean of its divisors is an integer number (2049321).

Almost surely, 2^8197278 is an apocalyptic number.

8197278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8197278 is a wasteful number, since it uses less digits than its factorization.

8197278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366218.

The product of its digits is 56448, while the sum is 42.

The square root of 8197278 is about 2863.0888913899. The cubic root of 8197278 is about 201.6306520696.

The spelling of 8197278 in words is "eight million, one hundred ninety-seven thousand, two hundred seventy-eight".