9945506 has 8 divisors (see below), whose sum is σ = 14938560. Its totient is φ = 4965988.

The previous prime is 9945461. The next prime is 9945511. The reversal of 9945506 is 6055499.

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

It is a self number, because there is not a number n which added to its sum of digits gives 9945506.

It is an unprimeable number.

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, 1286 + ... + 4641.

It is an arithmetic number, because the mean of its divisors is an integer number (1867320).

Almost surely, 2^9945506 is an apocalyptic number.

9945506 is a deficient number, since it is larger than the sum of its proper divisors (4993054).

9945506 is a wasteful number, since it uses less digits than its factorization.

9945506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6768.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 9945506 is about 3153.6496317759. The cubic root of 9945506 is about 215.0514100965.

The spelling of 9945506 in words is "nine million, nine hundred forty-five thousand, five hundred six".