16479217 has 2 divisors, whose sum is σ = 16479218. Its totient is φ = 16479216.

The previous prime is 16479181. The next prime is 16479223. The reversal of 16479217 is 71297461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15124321 + 1354896 = 3889^2 + 1164^2 .

It is an emirp because it is prime and its reverse (71297461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16479217 is a prime.

It is a super-3 number, since 3×16479217³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16479227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8239608 + 8239609.

It is an arithmetic number, because the mean of its divisors is an integer number (8239609).

Almost surely, 2^16479217 is an apocalyptic number.

It is an amenable number.

16479217 is a deficient number, since it is larger than the sum of its proper divisors (1).

16479217 is an equidigital number, since it uses as much as digits as its factorization.

16479217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 16479217 is about 4059.4601857883. The cubic root of 16479217 is about 254.4752350642.

The spelling of 16479217 in words is "sixteen million, four hundred seventy-nine thousand, two hundred seventeen".