13216773 has 4 divisors (see below), whose sum is σ = 17622368. Its totient is φ = 8811180.

The previous prime is 13216751. The next prime is 13216783. The reversal of 13216773 is 37761231.

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: 37761231 = 3 ⋅12587077.

It is not a de Polignac number, because 13216773 - 2⁵ = 13216741 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 13216773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13216703) 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, 2202793 + ... + 2202798.

It is an arithmetic number, because the mean of its divisors is an integer number (4405592).

Almost surely, 2^13216773 is an apocalyptic number.

It is an amenable number.

13216773 is a deficient number, since it is larger than the sum of its proper divisors (4405595).

13216773 is an equidigital number, since it uses as much as digits as its factorization.

13216773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405594.

The product of its digits is 5292, while the sum is 30.

The square root of 13216773 is about 3635.4880002553. The cubic root of 13216773 is about 236.4332091367.

The spelling of 13216773 in words is "thirteen million, two hundred sixteen thousand, seven hundred seventy-three".