9906947 has 8 divisors (see below), whose sum is σ = 10053120. Its totient is φ = 9762120.

The previous prime is 9906943. The next prime is 9906973. The reversal of 9906947 is 7496099.

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 9906947 - 2² = 9906943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9906898 and 9906907.

It is not an unprimeable number, because it can be changed into a prime (9906943) 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, 36422 + ... + 36692.

It is an arithmetic number, because the mean of its divisors is an integer number (1256640).

Almost surely, 2^9906947 is an apocalyptic number.

9906947 is a deficient number, since it is larger than the sum of its proper divisors (146173).

9906947 is a wasteful number, since it uses less digits than its factorization.

9906947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 9906947 is about 3147.5303016810. The cubic root of 9906947 is about 214.7731300779.

The spelling of 9906947 in words is "nine million, nine hundred six thousand, nine hundred forty-seven".