16413217 has 4 divisors (see below), whose sum is σ = 16979220. Its totient is φ = 15847216.

The previous prime is 16413197. The next prime is 16413223. The reversal of 16413217 is 71231461.

16413217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12103441 + 4309776 = 3479^2 + 2076^2 .

It is a cyclic number.

It is not a de Polignac number, because 16413217 - 2¹¹ = 16411169 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16413191 and 16413200.

It is not an unprimeable number, because it can be changed into a prime (16413227) 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, 282958 + ... + 283015.

It is an arithmetic number, because the mean of its divisors is an integer number (4244805).

Almost surely, 2^16413217 is an apocalyptic number.

It is an amenable number.

16413217 is a deficient number, since it is larger than the sum of its proper divisors (566003).

16413217 is an equidigital number, since it uses as much as digits as its factorization.

16413217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566002.

The product of its digits is 1008, while the sum is 25.

The square root of 16413217 is about 4051.3228703721. The cubic root of 16413217 is about 254.1350522833.

Adding to 16413217 its reverse (71231461), we get a palindrome (87644678).

The spelling of 16413217 in words is "sixteen million, four hundred thirteen thousand, two hundred seventeen".