801984697 has 2 divisors, whose sum is σ = 801984698. Its totient is φ = 801984696.

The previous prime is 801984683. The next prime is 801984721. The reversal of 801984697 is 796489108.

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., 767068416 + 34916281 = 27696^2 + 5909^2 .

It is a cyclic number.

It is not a de Polignac number, because 801984697 - 2¹⁹ = 801460409 is a prime.

It is not a weakly prime, because it can be changed into another prime (801984637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400992348 + 400992349.

It is an arithmetic number, because the mean of its divisors is an integer number (400992349).

Almost surely, 2^801984697 is an apocalyptic number.

It is an amenable number.

801984697 is a deficient number, since it is larger than the sum of its proper divisors (1).

801984697 is an equidigital number, since it uses as much as digits as its factorization.

801984697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 801984697 is about 28319.3343318659. The cubic root of 801984697 is about 929.0848117113.

The spelling of 801984697 in words is "eight hundred one million, nine hundred eighty-four thousand, six hundred ninety-seven".