73065817 has 4 divisors (see below), whose sum is σ = 79708176. Its totient is φ = 66423460.

The previous prime is 73065793. The next prime is 73065821. The reversal of 73065817 is 71856037.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71856037 = 11 ⋅6532367.

It is a cyclic number.

It is not a de Polignac number, because 73065817 - 2¹⁹ = 72541529 is a prime.

It is a super-2 number, since 2×73065817² = 10677227227754978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73060817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3321163 + ... + 3321184.

It is an arithmetic number, because the mean of its divisors is an integer number (19927044).

Almost surely, 2^73065817 is an apocalyptic number.

It is an amenable number.

73065817 is a deficient number, since it is larger than the sum of its proper divisors (6642359).

73065817 is a wasteful number, since it uses less digits than its factorization.

73065817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642358.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 73065817 is about 8547.8545261370. The cubic root of 73065817 is about 418.0594853645.

The spelling of 73065817 in words is "seventy-three million, sixty-five thousand, eight hundred seventeen".