9990347 has 8 divisors (see below), whose sum is σ = 10313520. Its totient is φ = 9671040.

The previous prime is 9990307. The next prime is 9990359. The reversal of 9990347 is 7430999.

9990347 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9990347 - 2⁶ = 9990283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9990307) 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 7 ways as a sum of consecutive naturals, for example, 4823 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (1289190).

Almost surely, 2^9990347 is an apocalyptic number.

9990347 is a deficient number, since it is larger than the sum of its proper divisors (323173).

9990347 is a wasteful number, since it uses less digits than its factorization.

9990347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 9990347 is about 3160.7510183499. The cubic root of 9990347 is about 215.3741241587.

The spelling of 9990347 in words is "nine million, nine hundred ninety thousand, three hundred forty-seven".