9416821 has 8 divisors (see below), whose sum is σ = 9861120. Its totient is φ = 8975472.

The previous prime is 9416819. The next prime is 9416843. The reversal of 9416821 is 1286149.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9416821 - 2¹ = 9416819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9416221) 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 7 ways as a sum of consecutive naturals, for example, 8275 + ... + 9343.

It is an arithmetic number, because the mean of its divisors is an integer number (1232640).

Almost surely, 2^9416821 is an apocalyptic number.

It is an amenable number.

9416821 is a deficient number, since it is larger than the sum of its proper divisors (444299).

9416821 is a wasteful number, since it uses less digits than its factorization.

9416821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475.

The product of its digits is 3456, while the sum is 31.

The square root of 9416821 is about 3068.6839198588. The cubic root of 9416821 is about 211.1712407872.

The spelling of 9416821 in words is "nine million, four hundred sixteen thousand, eight hundred twenty-one".