8224284991 has 4 divisors (see below), whose sum is σ = 8856922312. Its totient is φ = 7591647672.

The previous prime is 8224284983. The next prime is 8224285019. The reversal of 8224284991 is 1994824228.

8224284991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8224284991 - 2³ = 8224284983 is a prime.

It is a super-2 number, since 2×8224284991² (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 (8224284091) 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, 316318641 + ... + 316318666.

It is an arithmetic number, because the mean of its divisors is an integer number (2214230578).

Almost surely, 2^8224284991 is an apocalyptic number.

8224284991 is a deficient number, since it is larger than the sum of its proper divisors (632637321).

8224284991 is a wasteful number, since it uses less digits than its factorization.

8224284991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632637320.

The product of its digits is 663552, while the sum is 49.

The square root of 8224284991 is about 90687.8436781910. The cubic root of 8224284991 is about 2018.5184207500.

The spelling of 8224284991 in words is "eight billion, two hundred twenty-four million, two hundred eighty-four thousand, nine hundred ninety-one".