64308473 has 2 divisors, whose sum is σ = 64308474. Its totient is φ = 64308472.

The previous prime is 64308403. The next prime is 64308487. The reversal of 64308473 is 37480346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62141689 + 2166784 = 7883^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 64308473 - 2¹⁰ = 64307449 is a prime.

It is not a weakly prime, because it can be changed into another prime (64308403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32154236 + 32154237.

It is an arithmetic number, because the mean of its divisors is an integer number (32154237).

Almost surely, 2^64308473 is an apocalyptic number.

It is an amenable number.

64308473 is a deficient number, since it is larger than the sum of its proper divisors (1).

64308473 is an equidigital number, since it uses as much as digits as its factorization.

64308473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 64308473 is about 8019.2563869725. The cubic root of 64308473 is about 400.6416223350.

The spelling of 64308473 in words is "sixty-four million, three hundred eight thousand, four hundred seventy-three".