8221240173 has 8 divisors (see below), whose sum is σ = 11229011136. Its totient is φ = 5347148000.

The previous prime is 8221240163. The next prime is 8221240187. The reversal of 8221240173 is 3710421228.

8221240173 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 8221240173 - 2⁶ = 8221240109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8221240173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8221240163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33419553 + ... + 33419798.

It is an arithmetic number, because the mean of its divisors is an integer number (1403626392).

Almost surely, 2^8221240173 is an apocalyptic number.

It is an amenable number.

8221240173 is a deficient number, since it is larger than the sum of its proper divisors (3007770963).

8221240173 is a wasteful number, since it uses less digits than its factorization.

8221240173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66839395.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 8221240173 is about 90671.0547694246. The cubic root of 8221240173 is about 2018.2692894740.

The spelling of 8221240173 in words is "eight billion, two hundred twenty-one million, two hundred forty thousand, one hundred seventy-three".