8744116021 has 2 divisors, whose sum is σ = 8744116022. Its totient is φ = 8744116020.

The previous prime is 8744116019. The next prime is 8744116033. The reversal of 8744116021 is 1206114478.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8133334225 + 610781796 = 90185^2 + 24714^2 .

It is a cyclic number.

It is not a de Polignac number, because 8744116021 - 2¹ = 8744116019 is a prime.

Together with 8744116019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8744116001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4372058010 + 4372058011.

It is an arithmetic number, because the mean of its divisors is an integer number (4372058011).

Almost surely, 2^8744116021 is an apocalyptic number.

It is an amenable number.

8744116021 is a deficient number, since it is larger than the sum of its proper divisors (1).

8744116021 is an equidigital number, since it uses as much as digits as its factorization.

8744116021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 8744116021 is about 93509.9781894959. The cubic root of 8744116021 is about 2060.1806500230.

The spelling of 8744116021 in words is "eight billion, seven hundred forty-four million, one hundred sixteen thousand, twenty-one".