73717273 has 4 divisors (see below), whose sum is σ = 84248320. Its totient is φ = 63186228.

The previous prime is 73717261. The next prime is 73717289. The reversal of 73717273 is 37271737.

It is a happy number.

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: 37271737 = 467 ⋅79811.

It is a de Polignac number, because none of the positive numbers 2^k-73717273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73717213) 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, 5265513 + ... + 5265526.

It is an arithmetic number, because the mean of its divisors is an integer number (21062080).

Almost surely, 2^73717273 is an apocalyptic number.

It is an amenable number.

73717273 is a deficient number, since it is larger than the sum of its proper divisors (10531047).

73717273 is a wasteful number, since it uses less digits than its factorization.

73717273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10531046.

The product of its digits is 43218, while the sum is 37.

The square root of 73717273 is about 8585.8763676168. The cubic root of 73717273 is about 419.2982859377.

The spelling of 73717273 in words is "seventy-three million, seven hundred seventeen thousand, two hundred seventy-three".