8434947811 has 8 divisors (see below), whose sum is σ = 8632515584. Its totient is φ = 8237444040.

The previous prime is 8434947793. The next prime is 8434947823. The reversal of 8434947811 is 1187494348.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8434947811 is a prime.

It is a super-2 number, since 2×8434947811² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8434947841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344506 + ... + 368176.

It is an arithmetic number, because the mean of its divisors is an integer number (1079064448).

Almost surely, 2^8434947811 is an apocalyptic number.

8434947811 is a deficient number, since it is larger than the sum of its proper divisors (197567773).

8434947811 is a wasteful number, since it uses less digits than its factorization.

8434947811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32001.

The product of its digits is 774144, while the sum is 49.

The square root of 8434947811 is about 91841.9719463819. The cubic root of 8434947811 is about 2035.6079263602.

The spelling of 8434947811 in words is "eight billion, four hundred thirty-four million, nine hundred forty-seven thousand, eight hundred eleven".