8009720423 has 2 divisors, whose sum is σ = 8009720424. Its totient is φ = 8009720422.

The previous prime is 8009720309. The next prime is 8009720443. The reversal of 8009720423 is 3240279008.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8009720423 - 2¹² = 8009716327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8009720443) 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, 4004860211 + 4004860212.

It is an arithmetic number, because the mean of its divisors is an integer number (4004860212).

Almost surely, 2^8009720423 is an apocalyptic number.

8009720423 is a deficient number, since it is larger than the sum of its proper divisors (1).

8009720423 is an equidigital number, since it uses as much as digits as its factorization.

8009720423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 8009720423 is about 89497.0414203732. The cubic root of 8009720423 is about 2000.8097073927.

The spelling of 8009720423 in words is "eight billion, nine million, seven hundred twenty thousand, four hundred twenty-three".