8371805473 has 2 divisors, whose sum is σ = 8371805474. Its totient is φ = 8371805472.

The previous prime is 8371805461. The next prime is 8371805509. The reversal of 8371805473 is 3745081738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7689185344 + 682620129 = 87688^2 + 26127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8371805473 is a prime.

It is not a weakly prime, because it can be changed into another prime (8371805423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4185902736 + 4185902737.

It is an arithmetic number, because the mean of its divisors is an integer number (4185902737).

Almost surely, 2^8371805473 is an apocalyptic number.

It is an amenable number.

8371805473 is a deficient number, since it is larger than the sum of its proper divisors (1).

8371805473 is an equidigital number, since it uses as much as digits as its factorization.

8371805473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 8371805473 is about 91497.5708584660. The cubic root of 8371805473 is about 2030.5158139026.

The spelling of 8371805473 in words is "eight billion, three hundred seventy-one million, eight hundred five thousand, four hundred seventy-three".