9994147 has 4 divisors (see below), whose sum is σ = 10582056. Its totient is φ = 9406240.

The previous prime is 9994139. The next prime is 9994151. The reversal of 9994147 is 7414999.

9994147 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9994147 - 2³ = 9994139 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9994177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293929 + ... + 293962.

It is an arithmetic number, because the mean of its divisors is an integer number (2645514).

Almost surely, 2^9994147 is an apocalyptic number.

9994147 is a deficient number, since it is larger than the sum of its proper divisors (587909).

9994147 is a wasteful number, since it uses less digits than its factorization.

9994147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587908.

The product of its digits is 81648, while the sum is 43.

The square root of 9994147 is about 3161.3520841564. The cubic root of 9994147 is about 215.4014277791.

The spelling of 9994147 in words is "nine million, nine hundred ninety-four thousand, one hundred forty-seven".