9398947 has 4 divisors (see below), whose sum is σ = 9405136. Its totient is φ = 9392760.

The previous prime is 9398923. The next prime is 9398953. The reversal of 9398947 is 7498939.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9398947 - 2¹⁵ = 9366179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9398947.

It is not an unprimeable number, because it can be changed into a prime (9398957) 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, 922 + ... + 4432.

It is an arithmetic number, because the mean of its divisors is an integer number (2351284).

Almost surely, 2^9398947 is an apocalyptic number.

9398947 is a deficient number, since it is larger than the sum of its proper divisors (6189).

9398947 is a wasteful number, since it uses less digits than its factorization.

9398947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6188.

The product of its digits is 489888, while the sum is 49.

The square root of 9398947 is about 3065.7702131765. The cubic root of 9398947 is about 211.0375486286.

The spelling of 9398947 in words is "nine million, three hundred ninety-eight thousand, nine hundred forty-seven".