9945718 has 8 divisors (see below), whose sum is σ = 14959080. Its totient is φ = 4959360.

The previous prime is 9945709. The next prime is 9945743. The reversal of 9945718 is 8175499.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5803 + ... + 7318.

It is an arithmetic number, because the mean of its divisors is an integer number (1869885).

Almost surely, 2^9945718 is an apocalyptic number.

9945718 is a deficient number, since it is larger than the sum of its proper divisors (5013362).

9945718 is a wasteful number, since it uses less digits than its factorization.

9945718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13502.

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

The square root of 9945718 is about 3153.6832434473. The cubic root of 9945718 is about 215.0529381091.

The spelling of 9945718 in words is "nine million, nine hundred forty-five thousand, seven hundred eighteen".