9421934917 has 4 divisors (see below), whose sum is σ = 9426313260. Its totient is φ = 9417556576.

The previous prime is 9421934857. The next prime is 9421934923. The reversal of 9421934917 is 7194391249.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2235303841 + 7186631076 = 47279^2 + 84774^2 .

It is a cyclic number.

It is not a de Polignac number, because 9421934917 - 2⁷ = 9421934789 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9421934617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2185942 + ... + 2190247.

It is an arithmetic number, because the mean of its divisors is an integer number (2356578315).

Almost surely, 2^9421934917 is an apocalyptic number.

It is an amenable number.

9421934917 is a deficient number, since it is larger than the sum of its proper divisors (4378343).

9421934917 is a wasteful number, since it uses less digits than its factorization.

9421934917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4378342.

The product of its digits is 489888, while the sum is 49.

The square root of 9421934917 is about 97066.6519305163. The cubic root of 9421934917 is about 2112.0946022350.

The spelling of 9421934917 in words is "nine billion, four hundred twenty-one million, nine hundred thirty-four thousand, nine hundred seventeen".