13216604 has 6 divisors (see below), whose sum is σ = 23129064. Its totient is φ = 6608300.

The previous prime is 13216603. The next prime is 13216607. The reversal of 13216604 is 40661231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13216604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13216601) 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 as a sum of consecutive naturals, namely, 1652072 + ... + 1652079.

It is an arithmetic number, because the mean of its divisors is an integer number (3854844).

Almost surely, 2^13216604 is an apocalyptic number.

It is an amenable number.

13216604 is a deficient number, since it is larger than the sum of its proper divisors (9912460).

13216604 is a wasteful number, since it uses less digits than its factorization.

13216604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304155 (or 3304153 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13216604 is about 3635.4647570840. The cubic root of 13216604 is about 236.4322013924.

Adding to 13216604 its reverse (40661231), we get a palindrome (53877835).

The spelling of 13216604 in words is "thirteen million, two hundred sixteen thousand, six hundred four".