9408821345 has 32 divisors (see below), whose sum is σ = 14085847296. Its totient is φ = 5861376000.

The previous prime is 9408821333. The next prime is 9408821351. The reversal of 9408821345 is 5431288049.

It is a happy number.

It is not a de Polignac number, because 9408821345 - 2⁴ = 9408821329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9408821296 and 9408821305.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 646145 + ... + 660545.

It is an arithmetic number, because the mean of its divisors is an integer number (440182728).

Almost surely, 2^9408821345 is an apocalyptic number.

It is an amenable number.

9408821345 is a deficient number, since it is larger than the sum of its proper divisors (4677025951).

9408821345 is a wasteful number, since it uses less digits than its factorization.

9408821345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16121.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 9408821345 is about 96999.0790935667. The cubic root of 9408821345 is about 2111.1142670010.

The spelling of 9408821345 in words is "nine billion, four hundred eight million, eight hundred twenty-one thousand, three hundred forty-five".