8478842 has 8 divisors (see below), whose sum is σ = 12831156. Its totient is φ = 4201792.

The previous prime is 8478829. The next prime is 8478851. The reversal of 8478842 is 2488748.

It can be written as a sum of positive squares in 2 ways, for example, as 7612081 + 866761 = 2759^2 + 931^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 8478842.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18533 + ... + 18984.

Almost surely, 2^8478842 is an apocalyptic number.

8478842 is a deficient number, since it is larger than the sum of its proper divisors (4352314).

8478842 is a wasteful number, since it uses less digits than its factorization.

8478842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37632.

The product of its digits is 114688, while the sum is 41.

The square root of 8478842 is about 2911.8451195076. The cubic root of 8478842 is about 203.9132817376.

The spelling of 8478842 in words is "eight million, four hundred seventy-eight thousand, eight hundred forty-two".