8434244191 has 4 divisors (see below), whose sum is σ = 8878151800. Its totient is φ = 7990336584.

The previous prime is 8434244167. The next prime is 8434244197. The reversal of 8434244191 is 1914424348.

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

It is a cyclic number.

It is not a de Polignac number, because 8434244191 - 2⁹ = 8434243679 is a prime.

It is a super-2 number, since 2×8434244191² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8434244197) 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, 221953776 + ... + 221953813.

It is an arithmetic number, because the mean of its divisors is an integer number (2219537950).

Almost surely, 2^8434244191 is an apocalyptic number.

8434244191 is a deficient number, since it is larger than the sum of its proper divisors (443907609).

8434244191 is a wasteful number, since it uses less digits than its factorization.

8434244191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443907608.

The product of its digits is 110592, while the sum is 40.

The square root of 8434244191 is about 91838.1412649450. The cubic root of 8434244191 is about 2035.5513231933.

The spelling of 8434244191 in words is "eight billion, four hundred thirty-four million, two hundred forty-four thousand, one hundred ninety-one".