73320617 has 4 divisors (see below), whose sum is σ = 73806336. Its totient is φ = 72834900.

The previous prime is 73320607. The next prime is 73320641. The reversal of 73320617 is 71602337.

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: 71602337 = 113 ⋅633649.

It is a cyclic number.

It is not a de Polignac number, because 73320617 - 2⁶ = 73320553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73320617.

It is not an unprimeable number, because it can be changed into a prime (73320607) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 242633 + ... + 242934.

It is an arithmetic number, because the mean of its divisors is an integer number (18451584).

Almost surely, 2^73320617 is an apocalyptic number.

It is an amenable number.

73320617 is a deficient number, since it is larger than the sum of its proper divisors (485719).

73320617 is a wasteful number, since it uses less digits than its factorization.

73320617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485718.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 73320617 is about 8562.7458796814. The cubic root of 73320617 is about 418.5448832224.

It can be divided in two parts, 73320 and 617, that added together give a palindrome (73937).

The spelling of 73320617 in words is "seventy-three million, three hundred twenty thousand, six hundred seventeen".