9947894 has 32 divisors (see below), whose sum is σ = 17023392. Its totient is φ = 4356000.

The previous prime is 9947867. The next prime is 9947923. The reversal of 9947894 is 4987499.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98444 + ... + 98544.

It is an arithmetic number, because the mean of its divisors is an integer number (531981).

Almost surely, 2^9947894 is an apocalyptic number.

9947894 is a deficient number, since it is larger than the sum of its proper divisors (7075498).

9947894 is a wasteful number, since it uses less digits than its factorization.

9947894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 151 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 9947894 is about 3154.0282180095. The cubic root of 9947894 is about 215.0686206058.

It can be divided in two parts, 994 and 7894, that added together give a palindrome (8888).

The spelling of 9947894 in words is "nine million, nine hundred forty-seven thousand, eight hundred ninety-four".