8947438 has 8 divisors (see below), whose sum is σ = 13489200. Its totient is φ = 4451040.

The previous prime is 8947417. The next prime is 8947441. The reversal of 8947438 is 8347498.

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

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 8947394 and 8947403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10843 + ... + 11638.

It is an arithmetic number, because the mean of its divisors is an integer number (1686150).

Almost surely, 2^8947438 is an apocalyptic number.

8947438 is a deficient number, since it is larger than the sum of its proper divisors (4541762).

8947438 is a wasteful number, since it uses less digits than its factorization.

8947438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22682.

The product of its digits is 193536, while the sum is 43.

The square root of 8947438 is about 2991.2268386065. The cubic root of 8947438 is about 207.6026530351.

The spelling of 8947438 in words is "eight million, nine hundred forty-seven thousand, four hundred thirty-eight".