16470689 has 2 divisors, whose sum is σ = 16470690. Its totient is φ = 16470688.

The previous prime is 16470673. The next prime is 16470719. The reversal of 16470689 is 98607461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16120225 + 350464 = 4015^2 + 592^2 .

It is a cyclic number.

It is not a de Polignac number, because 16470689 - 2⁴ = 16470673 is a prime.

It is a super-2 number, since 2×16470689² = 542567192269442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16470659) 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, 8235344 + 8235345.

It is an arithmetic number, because the mean of its divisors is an integer number (8235345).

Almost surely, 2^16470689 is an apocalyptic number.

It is an amenable number.

16470689 is a deficient number, since it is larger than the sum of its proper divisors (1).

16470689 is an equidigital number, since it uses as much as digits as its factorization.

16470689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 16470689 is about 4058.4096638955. The cubic root of 16470689 is about 254.4313304850.

The spelling of 16470689 in words is "sixteen million, four hundred seventy thousand, six hundred eighty-nine".