8232743621 has 2 divisors, whose sum is σ = 8232743622. Its totient is φ = 8232743620.

The previous prime is 8232743587. The next prime is 8232743627. The reversal of 8232743621 is 1263472328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6121341121 + 2111402500 = 78239^2 + 45950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8232743621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8232743627) 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 as a sum of consecutive naturals, namely, 4116371810 + 4116371811.

It is an arithmetic number, because the mean of its divisors is an integer number (4116371811).

Almost surely, 2^8232743621 is an apocalyptic number.

It is an amenable number.

8232743621 is a deficient number, since it is larger than the sum of its proper divisors (1).

8232743621 is an equidigital number, since it uses as much as digits as its factorization.

8232743621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

The square root of 8232743621 is about 90734.4676570045. The cubic root of 8232743621 is about 2019.2101951864.

The spelling of 8232743621 in words is "eight billion, two hundred thirty-two million, seven hundred forty-three thousand, six hundred twenty-one".