984861797 has 2 divisors, whose sum is σ = 984861798. Its totient is φ = 984861796.

The previous prime is 984861793. The next prime is 984861821. The reversal of 984861797 is 797168489.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 942858436 + 42003361 = 30706^2 + 6481^2 .

It is a cyclic number.

It is not a de Polignac number, because 984861797 - 2² = 984861793 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (984861793) 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, 492430898 + 492430899.

It is an arithmetic number, because the mean of its divisors is an integer number (492430899).

Almost surely, 2^984861797 is an apocalyptic number.

It is an amenable number.

984861797 is a deficient number, since it is larger than the sum of its proper divisors (1).

984861797 is an equidigital number, since it uses as much as digits as its factorization.

984861797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 59.

The square root of 984861797 is about 31382.5078188471. The cubic root of 984861797 is about 994.9282532040.

The spelling of 984861797 in words is "nine hundred eighty-four million, eight hundred sixty-one thousand, seven hundred ninety-seven".