9946819 has 4 divisors (see below), whose sum is σ = 10531944. Its totient is φ = 9361696.

The previous prime is 9946817. The next prime is 9946829. The reversal of 9946819 is 9186499.

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

It is not a de Polignac number, because 9946819 - 2¹ = 9946817 is a prime.

It is a super-2 number, since 2×9946819² = 197878416437522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9946817) by changing a digit.

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, 292537 + ... + 292570.

It is an arithmetic number, because the mean of its divisors is an integer number (2632986).

Almost surely, 2^9946819 is an apocalyptic number.

9946819 is a deficient number, since it is larger than the sum of its proper divisors (585125).

9946819 is a wasteful number, since it uses less digits than its factorization.

9946819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585124.

The product of its digits is 139968, while the sum is 46.

The square root of 9946819 is about 3153.8577964138. The cubic root of 9946819 is about 215.0608733347.

The spelling of 9946819 in words is "nine million, nine hundred forty-six thousand, eight hundred nineteen".