73086505 has 8 divisors (see below), whose sum is σ = 88905672. Its totient is φ = 57667968.

The previous prime is 73086491. The next prime is 73086511. The reversal of 73086505 is 50568037.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16941456 + 56145049 = 4116^2 + 7493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73086505 - 2⁵ = 73086473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99754 + ... + 100483.

It is an arithmetic number, because the mean of its divisors is an integer number (11113209).

Almost surely, 2^73086505 is an apocalyptic number.

It is an amenable number.

73086505 is a deficient number, since it is larger than the sum of its proper divisors (15819167).

73086505 is a wasteful number, since it uses less digits than its factorization.

73086505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200315.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 73086505 is about 8549.0645687116. The cubic root of 73086505 is about 418.0989383711.

The spelling of 73086505 in words is "seventy-three million, eighty-six thousand, five hundred five".