9920446 has 4 divisors (see below), whose sum is σ = 14880672. Its totient is φ = 4960222.

The previous prime is 9920423. The next prime is 9920447. The reversal of 9920446 is 6440299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6440299 = 23 ⋅280013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9920447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2480110 + ... + 2480113.

It is an arithmetic number, because the mean of its divisors is an integer number (3720168).

Almost surely, 2^9920446 is an apocalyptic number.

9920446 is a deficient number, since it is larger than the sum of its proper divisors (4960226).

9920446 is a wasteful number, since it uses less digits than its factorization.

9920446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960225.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 9920446 is about 3149.6739513797. The cubic root of 9920446 is about 214.8706342727.

The spelling of 9920446 in words is "nine million, nine hundred twenty thousand, four hundred forty-six".