73211473 has 4 divisors (see below), whose sum is σ = 73922368. Its totient is φ = 72500580.

The previous prime is 73211471. The next prime is 73211513. The reversal of 73211473 is 37411237.

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: 37411237 = 17 ⋅2200661.

It is a cyclic number.

It is not a de Polignac number, because 73211473 - 2¹ = 73211471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73211471) 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, 355293 + ... + 355498.

It is an arithmetic number, because the mean of its divisors is an integer number (18480592).

Almost surely, 2^73211473 is an apocalyptic number.

It is an amenable number.

73211473 is a deficient number, since it is larger than the sum of its proper divisors (710895).

73211473 is a wasteful number, since it uses less digits than its factorization.

73211473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710894.

The product of its digits is 3528, while the sum is 28.

The square root of 73211473 is about 8556.3703169042. The cubic root of 73211473 is about 418.3371001532.

The spelling of 73211473 in words is "seventy-three million, two hundred eleven thousand, four hundred seventy-three".