73085573 has 6 divisors (see below), whose sum is σ = 80333862. Its totient is φ = 66441320.

The previous prime is 73085563. The next prime is 73085581. The reversal of 73085573 is 37558037.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37540129 + 35545444 = 6127^2 + 5962^2 .

It is not a de Polignac number, because 73085573 - 2¹⁴ = 73069189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73085563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 301886 + ... + 302127.

It is an arithmetic number, because the mean of its divisors is an integer number (13388977).

Almost surely, 2^73085573 is an apocalyptic number.

It is an amenable number.

73085573 is a deficient number, since it is larger than the sum of its proper divisors (7248289).

73085573 is a wasteful number, since it uses less digits than its factorization.

73085573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604035 (or 604024 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 73085573 is about 8549.0100596502. The cubic root of 73085573 is about 418.0971611627.

The spelling of 73085573 in words is "seventy-three million, eighty-five thousand, five hundred seventy-three".