801120709 has 2 divisors, whose sum is σ = 801120710. Its totient is φ = 801120708.

The previous prime is 801120667. The next prime is 801120739. The reversal of 801120709 is 907021108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 756525025 + 44595684 = 27505^2 + 6678^2 .

It is a cyclic number.

It is not a de Polignac number, because 801120709 - 2²¹ = 799023557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801120739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400560354 + 400560355.

It is an arithmetic number, because the mean of its divisors is an integer number (400560355).

Almost surely, 2^801120709 is an apocalyptic number.

It is an amenable number.

801120709 is a deficient number, since it is larger than the sum of its proper divisors (1).

801120709 is an equidigital number, since it uses as much as digits as its factorization.

801120709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 801120709 is about 28304.0758372359. The cubic root of 801120709 is about 928.7510536553.

The spelling of 801120709 in words is "eight hundred one million, one hundred twenty thousand, seven hundred nine".