9947158 has 8 divisors (see below), whose sum is σ = 16068528. Its totient is φ = 4590984.

The previous prime is 9947153. The next prime is 9947177. The reversal of 9947158 is 8517499.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9947153) by changing a digit.

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, 191266 + ... + 191317.

It is an arithmetic number, because the mean of its divisors is an integer number (2008566).

Almost surely, 2^9947158 is an apocalyptic number.

9947158 is a deficient number, since it is larger than the sum of its proper divisors (6121370).

9947158 is a wasteful number, since it uses less digits than its factorization.

9947158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382598.

The product of its digits is 90720, while the sum is 43.

The square root of 9947158 is about 3153.9115396599. The cubic root of 9947158 is about 215.0633164879.

The spelling of 9947158 in words is "nine million, nine hundred forty-seven thousand, one hundred fifty-eight".