16472009 has 2 divisors, whose sum is σ = 16472010. Its totient is φ = 16472008.

The previous prime is 16472003. The next prime is 16472021. The reversal of 16472009 is 90027461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9030025 + 7441984 = 3005^2 + 2728^2 .

It is a cyclic number.

It is not a de Polignac number, because 16472009 - 2¹⁶ = 16406473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16472003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8236004 + 8236005.

It is an arithmetic number, because the mean of its divisors is an integer number (8236005).

Almost surely, 2^16472009 is an apocalyptic number.

It is an amenable number.

16472009 is a deficient number, since it is larger than the sum of its proper divisors (1).

16472009 is an equidigital number, since it uses as much as digits as its factorization.

16472009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 16472009 is about 4058.5722859153. The cubic root of 16472009 is about 254.4381272131.

The spelling of 16472009 in words is "sixteen million, four hundred seventy-two thousand, nine".