8500073 has 6 divisors (see below), whose sum is σ = 8581482. Its totient is φ = 8419280.

The previous prime is 8500069. The next prime is 8500081. The reversal of 8500073 is 3700058.

It can be written as a sum of positive squares in only one way, i.e., 6165289 + 2334784 = 2483^2 + 1528^2 .

It is not a de Polignac number, because 8500073 - 2² = 8500069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8500573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36365 + ... + 36597.

It is an arithmetic number, because the mean of its divisors is an integer number (1430247).

Almost surely, 2^8500073 is an apocalyptic number.

It is an amenable number.

8500073 is a deficient number, since it is larger than the sum of its proper divisors (81409).

8500073 is an equidigital number, since it uses as much as digits as its factorization.

8500073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 8500073 is about 2915.4884667925. The cubic root of 8500073 is about 204.0833393311.

The spelling of 8500073 in words is "eight million, five hundred thousand, seventy-three".