8309473 has 2 divisors, whose sum is σ = 8309474. Its totient is φ = 8309472.

The previous prime is 8309467. The next prime is 8309491. The reversal of 8309473 is 3749038.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7354944 + 954529 = 2712^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 8309473 - 2²¹ = 6212321 is a prime.

It is equal to p₅₅₉₁₉₅ and since 8309473 and 559195 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (8309443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4154736 + 4154737.

It is an arithmetic number, because the mean of its divisors is an integer number (4154737).

Almost surely, 2^8309473 is an apocalyptic number.

It is an amenable number.

8309473 is a deficient number, since it is larger than the sum of its proper divisors (1).

8309473 is an equidigital number, since it uses as much as digits as its factorization.

8309473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 8309473 is about 2882.6156524934. The cubic root of 8309473 is about 202.5463837252.

The spelling of 8309473 in words is "eight million, three hundred nine thousand, four hundred seventy-three".