8339741021 has 2 divisors, whose sum is σ = 8339741022. Its totient is φ = 8339741020.

The previous prime is 8339740991. The next prime is 8339741063. The reversal of 8339741021 is 1201479338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7698132121 + 641608900 = 87739^2 + 25330^2 .

It is a cyclic number.

It is not a de Polignac number, because 8339741021 - 2¹⁴ = 8339724637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8339741821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4169870510 + 4169870511.

It is an arithmetic number, because the mean of its divisors is an integer number (4169870511).

Almost surely, 2^8339741021 is an apocalyptic number.

It is an amenable number.

8339741021 is a deficient number, since it is larger than the sum of its proper divisors (1).

8339741021 is an equidigital number, since it uses as much as digits as its factorization.

8339741021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 8339741021 is about 91322.1825242914. The cubic root of 8339741021 is about 2027.9201700704.

The spelling of 8339741021 in words is "eight billion, three hundred thirty-nine million, seven hundred forty-one thousand, twenty-one".