9966718 has 4 divisors (see below), whose sum is σ = 14950080. Its totient is φ = 4983358.

The previous prime is 9966707. The next prime is 9966721. The reversal of 9966718 is 8176699.

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

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2491678 + ... + 2491681.

It is an arithmetic number, because the mean of its divisors is an integer number (3737520).

Almost surely, 2^9966718 is an apocalyptic number.

9966718 is a deficient number, since it is larger than the sum of its proper divisors (4983362).

9966718 is a wasteful number, since it uses less digits than its factorization.

9966718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983361.

The product of its digits is 163296, while the sum is 46.

The square root of 9966718 is about 3157.0109280774. The cubic root of 9966718 is about 215.2041903663.

The spelling of 9966718 in words is "nine million, nine hundred sixty-six thousand, seven hundred eighteen".